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Finding the Fourth Proportional to 531,966.96, 734,128.92 and 317,124.72

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Solution

The fourth proportional to 531,966.96, 734,128.92 and 317,124.72 is: 437,640.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,966.96 : 734,128.92 = 317,124.72 : x
  2. Step 2: Convert to fraction form
    531,966.96/734,128.92 = 317,124.72/x
  3. Step 3: Cross multiply
    531,966.96x = 734,128.92 × 317,124.72
  4. Step 4: Simplify right side
    531,966.96x = 232,810,428,198.90
  5. Step 5: Solve for x
    x = 232,810,428,198.90/531,966.96
  6. Step 6: Final answer
    x = 437,640.77

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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.