Home / 742,489.90-1,024,635.79-402,958.15

Finding the Fourth Proportional to 742,489.90, 1,024,635.79 and 402,958.15

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Solution

The fourth proportional to 742,489.90, 1,024,635.79 and 402,958.15 is: 556,082.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,489.90 : 1,024,635.79 = 402,958.15 : x
  2. Step 2: Convert to fraction form
    742,489.90/1,024,635.79 = 402,958.15/x
  3. Step 3: Cross multiply
    742,489.90x = 1,024,635.79 × 402,958.15
  4. Step 4: Simplify right side
    742,489.90x = 412,885,340,304.30
  5. Step 5: Solve for x
    x = 412,885,340,304.30/742,489.90
  6. Step 6: Final answer
    x = 556,082.10

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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.