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Finding the Fourth Proportional to 546,885.20, 819,015.60 and 266,074.40

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Solution

The fourth proportional to 546,885.20, 819,015.60 and 266,074.40 is: 398,473.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,885.20 : 819,015.60 = 266,074.40 : x
  2. Step 2: Convert to fraction form
    546,885.20/819,015.60 = 266,074.40/x
  3. Step 3: Cross multiply
    546,885.20x = 819,015.60 × 266,074.40
  4. Step 4: Simplify right side
    546,885.20x = 217,919,084,360.64
  5. Step 5: Solve for x
    x = 217,919,084,360.64/546,885.20
  6. Step 6: Final answer
    x = 398,473.18

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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.