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Finding the Fourth Proportional to 671,798.72, 926,001.72 and 453,939.38

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Solution

The fourth proportional to 671,798.72, 926,001.72 and 453,939.38 is: 625,706.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,798.72 : 926,001.72 = 453,939.38 : x
  2. Step 2: Convert to fraction form
    671,798.72/926,001.72 = 453,939.38/x
  3. Step 3: Cross multiply
    671,798.72x = 926,001.72 × 453,939.38
  4. Step 4: Simplify right side
    671,798.72x = 420,348,646,655.73
  5. Step 5: Solve for x
    x = 420,348,646,655.73/671,798.72
  6. Step 6: Final answer
    x = 625,706.23

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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.