Home / 1,272,592.80-1,908,789.90-739,773.96

Finding the Fourth Proportional to 1,272,592.80, 1,908,789.90 and 739,773.96

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Solution

The fourth proportional to 1,272,592.80, 1,908,789.90 and 739,773.96 is: 1,109,603.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,592.80 : 1,908,789.90 = 739,773.96 : x
  2. Step 2: Convert to fraction form
    1,272,592.80/1,908,789.90 = 739,773.96/x
  3. Step 3: Cross multiply
    1,272,592.80x = 1,908,789.90 × 739,773.96
  4. Step 4: Simplify right side
    1,272,592.80x = 1,412,073,063,131.00
  5. Step 5: Solve for x
    x = 1,412,073,063,131.00/1,272,592.80
  6. Step 6: Final answer
    x = 1,109,603.22

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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.