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Finding the Fourth Proportional to 546,878.80, 820,318.20 and 497,015.20

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Solution

The fourth proportional to 546,878.80, 820,318.20 and 497,015.20 is: 745,522.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,878.80 : 820,318.20 = 497,015.20 : x
  2. Step 2: Convert to fraction form
    546,878.80/820,318.20 = 497,015.20/x
  3. Step 3: Cross multiply
    546,878.80x = 820,318.20 × 497,015.20
  4. Step 4: Simplify right side
    546,878.80x = 407,710,614,236.64
  5. Step 5: Solve for x
    x = 407,710,614,236.64/546,878.80
  6. Step 6: Final answer
    x = 745,522.80

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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.