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Finding the Fourth Proportional to 572,002.92, 789,458.22 and 317,436.12

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Solution

The fourth proportional to 572,002.92, 789,458.22 and 317,436.12 is: 438,114.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,002.92 : 789,458.22 = 317,436.12 : x
  2. Step 2: Convert to fraction form
    572,002.92/789,458.22 = 317,436.12/x
  3. Step 3: Cross multiply
    572,002.92x = 789,458.22 × 317,436.12
  4. Step 4: Simplify right side
    572,002.92x = 250,602,554,258.91
  5. Step 5: Solve for x
    x = 250,602,554,258.91/572,002.92
  6. Step 6: Final answer
    x = 438,114.12

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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.