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Finding the Fourth Proportional to 475,514.76, 656,421.39 and 303,657.87

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Solution

The fourth proportional to 475,514.76, 656,421.39 and 303,657.87 is: 419,182.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,514.76 : 656,421.39 = 303,657.87 : x
  2. Step 2: Convert to fraction form
    475,514.76/656,421.39 = 303,657.87/x
  3. Step 3: Cross multiply
    475,514.76x = 656,421.39 × 303,657.87
  4. Step 4: Simplify right side
    475,514.76x = 199,327,521,109.84
  5. Step 5: Solve for x
    x = 199,327,521,109.84/475,514.76
  6. Step 6: Final answer
    x = 419,182.62

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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.