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Finding the Fourth Proportional to 552,598.76, 762,555.12 and 310,891.52

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Solution

The fourth proportional to 552,598.76, 762,555.12 and 310,891.52 is: 429,012.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,598.76 : 762,555.12 = 310,891.52 : x
  2. Step 2: Convert to fraction form
    552,598.76/762,555.12 = 310,891.52/x
  3. Step 3: Cross multiply
    552,598.76x = 762,555.12 × 310,891.52
  4. Step 4: Simplify right side
    552,598.76x = 237,071,920,340.58
  5. Step 5: Solve for x
    x = 237,071,920,340.58/552,598.76
  6. Step 6: Final answer
    x = 429,012.76

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Double scale
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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.