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Finding the Fourth Proportional to 626,514.69, 864,591.12 and 340,034.78

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Solution

The fourth proportional to 626,514.69, 864,591.12 and 340,034.78 is: 469,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,514.69 : 864,591.12 = 340,034.78 : x
  2. Step 2: Convert to fraction form
    626,514.69/864,591.12 = 340,034.78/x
  3. Step 3: Cross multiply
    626,514.69x = 864,591.12 × 340,034.78
  4. Step 4: Simplify right side
    626,514.69x = 293,991,046,956.20
  5. Step 5: Solve for x
    x = 293,991,046,956.20/626,514.69
  6. Step 6: Final answer
    x = 469,248.45

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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.