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Finding the Fourth Proportional to 552,402.53, 762,290.30 and 307,399.40

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Solution

The fourth proportional to 552,402.53, 762,290.30 and 307,399.40 is: 424,197.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,402.53 : 762,290.30 = 307,399.40 : x
  2. Step 2: Convert to fraction form
    552,402.53/762,290.30 = 307,399.40/x
  3. Step 3: Cross multiply
    552,402.53x = 762,290.30 × 307,399.40
  4. Step 4: Simplify right side
    552,402.53x = 234,327,579,308.82
  5. Step 5: Solve for x
    x = 234,327,579,308.82/552,402.53
  6. Step 6: Final answer
    x = 424,197.15

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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.