Home / 725,624.40-1,088,436.60-539,000.40

Finding the Fourth Proportional to 725,624.40, 1,088,436.60 and 539,000.40

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Solution

The fourth proportional to 725,624.40, 1,088,436.60 and 539,000.40 is: 808,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,624.40 : 1,088,436.60 = 539,000.40 : x
  2. Step 2: Convert to fraction form
    725,624.40/1,088,436.60 = 539,000.40/x
  3. Step 3: Cross multiply
    725,624.40x = 1,088,436.60 × 539,000.40
  4. Step 4: Simplify right side
    725,624.40x = 586,667,762,774.64
  5. Step 5: Solve for x
    x = 586,667,762,774.64/725,624.40
  6. Step 6: Final answer
    x = 808,500.60

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Double scale
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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.