Home / 742,334.10-1,024,432.97-402,802.35

Finding the Fourth Proportional to 742,334.10, 1,024,432.97 and 402,802.35

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Solution

The fourth proportional to 742,334.10, 1,024,432.97 and 402,802.35 is: 555,873.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,334.10 : 1,024,432.97 = 402,802.35 : x
  2. Step 2: Convert to fraction form
    742,334.10/1,024,432.97 = 402,802.35/x
  3. Step 3: Cross multiply
    742,334.10x = 1,024,432.97 × 402,802.35
  4. Step 4: Simplify right side
    742,334.10x = 412,644,005,719.47
  5. Step 5: Solve for x
    x = 412,644,005,719.47/742,334.10
  6. Step 6: Final answer
    x = 555,873.70

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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.