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Finding the Fourth Proportional to 546,817.80, 820,226.70 and 487,720.20

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Solution

The fourth proportional to 546,817.80, 820,226.70 and 487,720.20 is: 731,580.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,817.80 : 820,226.70 = 487,720.20 : x
  2. Step 2: Convert to fraction form
    546,817.80/820,226.70 = 487,720.20/x
  3. Step 3: Cross multiply
    546,817.80x = 820,226.70 × 487,720.20
  4. Step 4: Simplify right side
    546,817.80x = 400,041,130,169.34
  5. Step 5: Solve for x
    x = 400,041,130,169.34/546,817.80
  6. Step 6: Final answer
    x = 731,580.30

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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.