Home / 742,508.28-1,024,661.85-402,976.53

Finding the Fourth Proportional to 742,508.28, 1,024,661.85 and 402,976.53

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Solution

The fourth proportional to 742,508.28, 1,024,661.85 and 402,976.53 is: 556,107.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,508.28 : 1,024,661.85 = 402,976.53 : x
  2. Step 2: Convert to fraction form
    742,508.28/1,024,661.85 = 402,976.53/x
  3. Step 3: Cross multiply
    742,508.28x = 1,024,661.85 × 402,976.53
  4. Step 4: Simplify right side
    742,508.28x = 412,914,676,736.38
  5. Step 5: Solve for x
    x = 412,914,676,736.38/742,508.28
  6. Step 6: Final answer
    x = 556,107.84

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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.