Home / 723,573.49-1,086,010.76-386,901.92

Finding the Fourth Proportional to 723,573.49, 1,086,010.76 and 386,901.92

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Solution

The fourth proportional to 723,573.49, 1,086,010.76 and 386,901.92 is: 580,700.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,573.49 : 1,086,010.76 = 386,901.92 : x
  2. Step 2: Convert to fraction form
    723,573.49/1,086,010.76 = 386,901.92/x
  3. Step 3: Cross multiply
    723,573.49x = 1,086,010.76 × 386,901.92
  4. Step 4: Simplify right side
    723,573.49x = 420,179,648,184.66
  5. Step 5: Solve for x
    x = 420,179,648,184.66/723,573.49
  6. Step 6: Final answer
    x = 580,700.72

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Double scale
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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.