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Finding the Fourth Proportional to 552,653.03, 762,655.80 and 307,633.90

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Solution

The fourth proportional to 552,653.03, 762,655.80 and 307,633.90 is: 424,531.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,653.03 : 762,655.80 = 307,633.90 : x
  2. Step 2: Convert to fraction form
    552,653.03/762,655.80 = 307,633.90/x
  3. Step 3: Cross multiply
    552,653.03x = 762,655.80 × 307,633.90
  4. Step 4: Simplify right side
    552,653.03x = 234,618,778,111.62
  5. Step 5: Solve for x
    x = 234,618,778,111.62/552,653.03
  6. Step 6: Final answer
    x = 424,531.79

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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.