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Finding the Fourth Proportional to 407,553.64, 610,535.14 and 266,885.80

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Solution

The fourth proportional to 407,553.64, 610,535.14 and 266,885.80 is: 399,807.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,553.64 : 610,535.14 = 266,885.80 : x
  2. Step 2: Convert to fraction form
    407,553.64/610,535.14 = 266,885.80/x
  3. Step 3: Cross multiply
    407,553.64x = 610,535.14 × 266,885.80
  4. Step 4: Simplify right side
    407,553.64x = 162,943,159,267.01
  5. Step 5: Solve for x
    x = 162,943,159,267.01/407,553.64
  6. Step 6: Final answer
    x = 399,807.89

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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.