Home / 742,423.95-1,024,539.06-402,892.20

Finding the Fourth Proportional to 742,423.95, 1,024,539.06 and 402,892.20

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Solution

The fourth proportional to 742,423.95, 1,024,539.06 and 402,892.20 is: 555,987.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,423.95 : 1,024,539.06 = 402,892.20 : x
  2. Step 2: Convert to fraction form
    742,423.95/1,024,539.06 = 402,892.20/x
  3. Step 3: Cross multiply
    742,423.95x = 1,024,539.06 × 402,892.20
  4. Step 4: Simplify right side
    742,423.95x = 412,778,795,869.33
  5. Step 5: Solve for x
    x = 412,778,795,869.33/742,423.95
  6. Step 6: Final answer
    x = 555,987.98

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Half scale
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Double scale
Find fourth proportional to 742,424.95, 1,024,540.44 and 402,893.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.