Home / 747,344.52-1,031,333.94-420,631.20

Finding the Fourth Proportional to 747,344.52, 1,031,333.94 and 420,631.20

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Solution

The fourth proportional to 747,344.52, 1,031,333.94 and 420,631.20 is: 580,470.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,344.52 : 1,031,333.94 = 420,631.20 : x
  2. Step 2: Convert to fraction form
    747,344.52/1,031,333.94 = 420,631.20/x
  3. Step 3: Cross multiply
    747,344.52x = 1,031,333.94 × 420,631.20
  4. Step 4: Simplify right side
    747,344.52x = 433,811,232,782.93
  5. Step 5: Solve for x
    x = 433,811,232,782.93/747,344.52
  6. Step 6: Final answer
    x = 580,470.21

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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.