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Finding the Fourth Proportional to 552,565.29, 762,538.98 and 310,848.03

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Solution

The fourth proportional to 552,565.29, 762,538.98 and 310,848.03 is: 428,969.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,565.29 : 762,538.98 = 310,848.03 : x
  2. Step 2: Convert to fraction form
    552,565.29/762,538.98 = 310,848.03/x
  3. Step 3: Cross multiply
    552,565.29x = 762,538.98 × 310,848.03
  4. Step 4: Simplify right side
    552,565.29x = 237,033,739,731.21
  5. Step 5: Solve for x
    x = 237,033,739,731.21/552,565.29
  6. Step 6: Final answer
    x = 428,969.65

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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.