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Finding the Fourth Proportional to 501,671.52, 753,387.12 and 389,478.24

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Solution

The fourth proportional to 501,671.52, 753,387.12 and 389,478.24 is: 584,900.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,671.52 : 753,387.12 = 389,478.24 : x
  2. Step 2: Convert to fraction form
    501,671.52/753,387.12 = 389,478.24/x
  3. Step 3: Cross multiply
    501,671.52x = 753,387.12 × 389,478.24
  4. Step 4: Simplify right side
    501,671.52x = 293,427,889,536.27
  5. Step 5: Solve for x
    x = 293,427,889,536.27/501,671.52
  6. Step 6: Final answer
    x = 584,900.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.