Home / 727,712.70-1,091,569.05-328,803.90

Finding the Fourth Proportional to 727,712.70, 1,091,569.05 and 328,803.90

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Solution

The fourth proportional to 727,712.70, 1,091,569.05 and 328,803.90 is: 493,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,712.70 : 1,091,569.05 = 328,803.90 : x
  2. Step 2: Convert to fraction form
    727,712.70/1,091,569.05 = 328,803.90/x
  3. Step 3: Cross multiply
    727,712.70x = 1,091,569.05 × 328,803.90
  4. Step 4: Simplify right side
    727,712.70x = 358,912,160,759.30
  5. Step 5: Solve for x
    x = 358,912,160,759.30/727,712.70
  6. Step 6: Final answer
    x = 493,205.85

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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.