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Finding the Fourth Proportional to 545,868.60, 818,689.92 and 146,414.40

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Solution

The fourth proportional to 545,868.60, 818,689.92 and 146,414.40 is: 219,591.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,868.60 : 818,689.92 = 146,414.40 : x
  2. Step 2: Convert to fraction form
    545,868.60/818,689.92 = 146,414.40/x
  3. Step 3: Cross multiply
    545,868.60x = 818,689.92 × 146,414.40
  4. Step 4: Simplify right side
    545,868.60x = 119,867,993,422.85
  5. Step 5: Solve for x
    x = 119,867,993,422.85/545,868.60
  6. Step 6: Final answer
    x = 219,591.30

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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.