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Finding the Fourth Proportional to 576,415.20, 864,622.80 and 541,423.20

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Solution

The fourth proportional to 576,415.20, 864,622.80 and 541,423.20 is: 812,134.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,415.20 : 864,622.80 = 541,423.20 : x
  2. Step 2: Convert to fraction form
    576,415.20/864,622.80 = 541,423.20/x
  3. Step 3: Cross multiply
    576,415.20x = 864,622.80 × 541,423.20
  4. Step 4: Simplify right side
    576,415.20x = 468,126,843,168.96
  5. Step 5: Solve for x
    x = 468,126,843,168.96/576,415.20
  6. Step 6: Final answer
    x = 812,134.80

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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.