Home / 540,091.20-810,136.80-329,966.40

Finding the Fourth Proportional to 540,091.20, 810,136.80 and 329,966.40

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Solution

The fourth proportional to 540,091.20, 810,136.80 and 329,966.40 is: 494,949.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,091.20 : 810,136.80 = 329,966.40 : x
  2. Step 2: Convert to fraction form
    540,091.20/810,136.80 = 329,966.40/x
  3. Step 3: Cross multiply
    540,091.20x = 810,136.80 × 329,966.40
  4. Step 4: Simplify right side
    540,091.20x = 267,317,923,403.52
  5. Step 5: Solve for x
    x = 267,317,923,403.52/540,091.20
  6. Step 6: Final answer
    x = 494,949.60

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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.