Home / 742,173.03-1,024,200.72-402,641.28

Finding the Fourth Proportional to 742,173.03, 1,024,200.72 and 402,641.28

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Solution

The fourth proportional to 742,173.03, 1,024,200.72 and 402,641.28 is: 555,646.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,173.03 : 1,024,200.72 = 402,641.28 : x
  2. Step 2: Convert to fraction form
    742,173.03/1,024,200.72 = 402,641.28/x
  3. Step 3: Cross multiply
    742,173.03x = 1,024,200.72 × 402,641.28
  4. Step 4: Simplify right side
    742,173.03x = 412,385,488,877.72
  5. Step 5: Solve for x
    x = 412,385,488,877.72/742,173.03
  6. Step 6: Final answer
    x = 555,646.02

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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.