Home / 547,749.60-821,624.40-359,743.20

Finding the Fourth Proportional to 547,749.60, 821,624.40 and 359,743.20

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Solution

The fourth proportional to 547,749.60, 821,624.40 and 359,743.20 is: 539,614.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,749.60 : 821,624.40 = 359,743.20 : x
  2. Step 2: Convert to fraction form
    547,749.60/821,624.40 = 359,743.20/x
  3. Step 3: Cross multiply
    547,749.60x = 821,624.40 × 359,743.20
  4. Step 4: Simplify right side
    547,749.60x = 295,573,790,854.08
  5. Step 5: Solve for x
    x = 295,573,790,854.08/547,749.60
  6. Step 6: Final answer
    x = 539,614.80

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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.