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Finding the Fourth Proportional to 546,512.92, 819,765.58 and 420,377.76

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Solution

The fourth proportional to 546,512.92, 819,765.58 and 420,377.76 is: 630,563.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,512.92 : 819,765.58 = 420,377.76 : x
  2. Step 2: Convert to fraction form
    546,512.92/819,765.58 = 420,377.76/x
  3. Step 3: Cross multiply
    546,512.92x = 819,765.58 × 420,377.76
  4. Step 4: Simplify right side
    546,512.92x = 344,611,218,245.50
  5. Step 5: Solve for x
    x = 344,611,218,245.50/546,512.92
  6. Step 6: Final answer
    x = 630,563.72

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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.