Home / 729,001.65-1,006,022.91-406,711.82

Finding the Fourth Proportional to 729,001.65, 1,006,022.91 and 406,711.82

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Solution

The fourth proportional to 729,001.65, 1,006,022.91 and 406,711.82 is: 561,262.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,001.65 : 1,006,022.91 = 406,711.82 : x
  2. Step 2: Convert to fraction form
    729,001.65/1,006,022.91 = 406,711.82/x
  3. Step 3: Cross multiply
    729,001.65x = 1,006,022.91 × 406,711.82
  4. Step 4: Simplify right side
    729,001.65x = 409,161,403,657.68
  5. Step 5: Solve for x
    x = 409,161,403,657.68/729,001.65
  6. Step 6: Final answer
    x = 561,262.66

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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.