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Finding the Fourth Proportional to 585,500.38, 807,990.52 and 317,228.38

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Solution

The fourth proportional to 585,500.38, 807,990.52 and 317,228.38 is: 437,775.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,500.38 : 807,990.52 = 317,228.38 : x
  2. Step 2: Convert to fraction form
    585,500.38/807,990.52 = 317,228.38/x
  3. Step 3: Cross multiply
    585,500.38x = 807,990.52 × 317,228.38
  4. Step 4: Simplify right side
    585,500.38x = 256,317,523,714.96
  5. Step 5: Solve for x
    x = 256,317,523,714.96/585,500.38
  6. Step 6: Final answer
    x = 437,775.16

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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.