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Finding the Fourth Proportional to 407,607.14, 611,539.88 and 317,957.22

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Solution

The fourth proportional to 407,607.14, 611,539.88 and 317,957.22 is: 477,036.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,607.14 : 611,539.88 = 317,957.22 : x
  2. Step 2: Convert to fraction form
    407,607.14/611,539.88 = 317,957.22/x
  3. Step 3: Cross multiply
    407,607.14x = 611,539.88 × 317,957.22
  4. Step 4: Simplify right side
    407,607.14x = 194,443,520,294.10
  5. Step 5: Solve for x
    x = 194,443,520,294.10/407,607.14
  6. Step 6: Final answer
    x = 477,036.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.