Home / 547,789.20-821,683.80-498,800.40

Finding the Fourth Proportional to 547,789.20, 821,683.80 and 498,800.40

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Solution

The fourth proportional to 547,789.20, 821,683.80 and 498,800.40 is: 748,200.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,789.20 : 821,683.80 = 498,800.40 : x
  2. Step 2: Convert to fraction form
    547,789.20/821,683.80 = 498,800.40/x
  3. Step 3: Cross multiply
    547,789.20x = 821,683.80 × 498,800.40
  4. Step 4: Simplify right side
    547,789.20x = 409,856,208,113.52
  5. Step 5: Solve for x
    x = 409,856,208,113.52/547,789.20
  6. Step 6: Final answer
    x = 748,200.60

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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.