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Finding the Fourth Proportional to 492,759.80, 737,757.30 and 478,935.80

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Solution

The fourth proportional to 492,759.80, 737,757.30 and 478,935.80 is: 717,060.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,759.80 : 737,757.30 = 478,935.80 : x
  2. Step 2: Convert to fraction form
    492,759.80/737,757.30 = 478,935.80/x
  3. Step 3: Cross multiply
    492,759.80x = 737,757.30 × 478,935.80
  4. Step 4: Simplify right side
    492,759.80x = 353,338,382,681.34
  5. Step 5: Solve for x
    x = 353,338,382,681.34/492,759.80
  6. Step 6: Final answer
    x = 717,060.08

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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.