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Finding the Fourth Proportional to 508,448.00, 762,382.96 and 393,001.65

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Solution

The fourth proportional to 508,448.00, 762,382.96 and 393,001.65 is: 589,279.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,448.00 : 762,382.96 = 393,001.65 : x
  2. Step 2: Convert to fraction form
    508,448.00/762,382.96 = 393,001.65/x
  3. Step 3: Cross multiply
    508,448.00x = 762,382.96 × 393,001.65
  4. Step 4: Simplify right side
    508,448.00x = 299,617,760,229.38
  5. Step 5: Solve for x
    x = 299,617,760,229.38/508,448.00
  6. Step 6: Final answer
    x = 589,279.06

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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.