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Finding the Fourth Proportional to 552,437.11, 762,355.85 and 310,719.54

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Solution

The fourth proportional to 552,437.11, 762,355.85 and 310,719.54 is: 428,788.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,437.11 : 762,355.85 = 310,719.54 : x
  2. Step 2: Convert to fraction form
    552,437.11/762,355.85 = 310,719.54/x
  3. Step 3: Cross multiply
    552,437.11x = 762,355.85 × 310,719.54
  4. Step 4: Simplify right side
    552,437.11x = 236,878,862,081.34
  5. Step 5: Solve for x
    x = 236,878,862,081.34/552,437.11
  6. Step 6: Final answer
    x = 428,788.83

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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.