Home / 723,572.49-1,086,009.26-386,900.92

Finding the Fourth Proportional to 723,572.49, 1,086,009.26 and 386,900.92

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Solution

The fourth proportional to 723,572.49, 1,086,009.26 and 386,900.92 is: 580,699.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,572.49 : 1,086,009.26 = 386,900.92 : x
  2. Step 2: Convert to fraction form
    723,572.49/1,086,009.26 = 386,900.92/x
  3. Step 3: Cross multiply
    723,572.49x = 1,086,009.26 × 386,900.92
  4. Step 4: Simplify right side
    723,572.49x = 420,177,977,172.99
  5. Step 5: Solve for x
    x = 420,177,977,172.99/723,572.49
  6. Step 6: Final answer
    x = 580,699.22

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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.