Home / 727,710.60-1,091,565.90-447,385.80

Finding the Fourth Proportional to 727,710.60, 1,091,565.90 and 447,385.80

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Solution

The fourth proportional to 727,710.60, 1,091,565.90 and 447,385.80 is: 671,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,710.60 : 1,091,565.90 = 447,385.80 : x
  2. Step 2: Convert to fraction form
    727,710.60/1,091,565.90 = 447,385.80/x
  3. Step 3: Cross multiply
    727,710.60x = 1,091,565.90 × 447,385.80
  4. Step 4: Simplify right side
    727,710.60x = 488,351,083,424.22
  5. Step 5: Solve for x
    x = 488,351,083,424.22/727,710.60
  6. Step 6: Final answer
    x = 671,078.70

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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.