Home / 728,743.53-1,005,670.89-406,474.50

Finding the Fourth Proportional to 728,743.53, 1,005,670.89 and 406,474.50

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Solution

The fourth proportional to 728,743.53, 1,005,670.89 and 406,474.50 is: 560,937.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,743.53 : 1,005,670.89 = 406,474.50 : x
  2. Step 2: Convert to fraction form
    728,743.53/1,005,670.89 = 406,474.50/x
  3. Step 3: Cross multiply
    728,743.53x = 1,005,670.89 × 406,474.50
  4. Step 4: Simplify right side
    728,743.53x = 408,779,572,177.31
  5. Step 5: Solve for x
    x = 408,779,572,177.31/728,743.53
  6. Step 6: Final answer
    x = 560,937.50

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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.