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Finding the Fourth Proportional to 585,280.32, 807,690.72 and 317,008.32

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Solution

The fourth proportional to 585,280.32, 807,690.72 and 317,008.32 is: 437,473.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,280.32 : 807,690.72 = 317,008.32 : x
  2. Step 2: Convert to fraction form
    585,280.32/807,690.72 = 317,008.32/x
  3. Step 3: Cross multiply
    585,280.32x = 807,690.72 × 317,008.32
  4. Step 4: Simplify right side
    585,280.32x = 256,044,678,226.79
  5. Step 5: Solve for x
    x = 256,044,678,226.79/585,280.32
  6. Step 6: Final answer
    x = 437,473.58

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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.