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Finding the Fourth Proportional to 571,255.49, 787,872.92 and 502,197.30

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Solution

The fourth proportional to 571,255.49, 787,872.92 and 502,197.30 is: 692,628.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,255.49 : 787,872.92 = 502,197.30 : x
  2. Step 2: Convert to fraction form
    571,255.49/787,872.92 = 502,197.30/x
  3. Step 3: Cross multiply
    571,255.49x = 787,872.92 × 502,197.30
  4. Step 4: Simplify right side
    571,255.49x = 395,667,650,656.13
  5. Step 5: Solve for x
    x = 395,667,650,656.13/571,255.49
  6. Step 6: Final answer
    x = 692,628.18

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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.