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Finding the Fourth Proportional to 478,306.36, 660,092.76 and 263,446.36

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Solution

The fourth proportional to 478,306.36, 660,092.76 and 263,446.36 is: 363,572.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,306.36 : 660,092.76 = 263,446.36 : x
  2. Step 2: Convert to fraction form
    478,306.36/660,092.76 = 263,446.36/x
  3. Step 3: Cross multiply
    478,306.36x = 660,092.76 × 263,446.36
  4. Step 4: Simplify right side
    478,306.36x = 173,899,034,884.35
  5. Step 5: Solve for x
    x = 173,899,034,884.35/478,306.36
  6. Step 6: Final answer
    x = 363,572.49

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1.5x scale

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.