Home / 724,543.60-1,086,815.40-444,218.80

Finding the Fourth Proportional to 724,543.60, 1,086,815.40 and 444,218.80

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Solution

The fourth proportional to 724,543.60, 1,086,815.40 and 444,218.80 is: 666,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,543.60 : 1,086,815.40 = 444,218.80 : x
  2. Step 2: Convert to fraction form
    724,543.60/1,086,815.40 = 444,218.80/x
  3. Step 3: Cross multiply
    724,543.60x = 1,086,815.40 × 444,218.80
  4. Step 4: Simplify right side
    724,543.60x = 482,783,832,809.52
  5. Step 5: Solve for x
    x = 482,783,832,809.52/724,543.60
  6. Step 6: Final answer
    x = 666,328.20

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Similar ratio
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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.