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Finding the Fourth Proportional to 641,932.16, 963,027.84 and 442,348.16

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Solution

The fourth proportional to 641,932.16, 963,027.84 and 442,348.16 is: 663,611.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,932.16 : 963,027.84 = 442,348.16 : x
  2. Step 2: Convert to fraction form
    641,932.16/963,027.84 = 442,348.16/x
  3. Step 3: Cross multiply
    641,932.16x = 963,027.84 × 442,348.16
  4. Step 4: Simplify right side
    641,932.16x = 425,993,593,052.77
  5. Step 5: Solve for x
    x = 425,993,593,052.77/641,932.16
  6. Step 6: Final answer
    x = 663,611.55

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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.