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Finding the Fourth Proportional to 552,655.57, 762,659.29 and 307,636.44

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Solution

The fourth proportional to 552,655.57, 762,659.29 and 307,636.44 is: 424,535.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,655.57 : 762,659.29 = 307,636.44 : x
  2. Step 2: Convert to fraction form
    552,655.57/762,659.29 = 307,636.44/x
  3. Step 3: Cross multiply
    552,655.57x = 762,659.29 × 307,636.44
  4. Step 4: Simplify right side
    552,655.57x = 234,621,788,908.53
  5. Step 5: Solve for x
    x = 234,621,788,908.53/552,655.57
  6. Step 6: Final answer
    x = 424,535.28

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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.