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Finding the Fourth Proportional to 478,793.67, 716,072.97 and 425,857.34

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Solution

The fourth proportional to 478,793.67, 716,072.97 and 425,857.34 is: 636,902.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,793.67 : 716,072.97 = 425,857.34 : x
  2. Step 2: Convert to fraction form
    478,793.67/716,072.97 = 425,857.34/x
  3. Step 3: Cross multiply
    478,793.67x = 716,072.97 × 425,857.34
  4. Step 4: Simplify right side
    478,793.67x = 304,944,926,669.74
  5. Step 5: Solve for x
    x = 304,944,926,669.74/478,793.67
  6. Step 6: Final answer
    x = 636,902.59

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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.