Home / 1,188,414.90-1,781,835.15-656,190.90

Finding the Fourth Proportional to 1,188,414.90, 1,781,835.15 and 656,190.90

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Solution

The fourth proportional to 1,188,414.90, 1,781,835.15 and 656,190.90 is: 983,851.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,414.90 : 1,781,835.15 = 656,190.90 : x
  2. Step 2: Convert to fraction form
    1,188,414.90/1,781,835.15 = 656,190.90/x
  3. Step 3: Cross multiply
    1,188,414.90x = 1,781,835.15 × 656,190.90
  4. Step 4: Simplify right side
    1,188,414.90x = 1,169,224,010,730.14
  5. Step 5: Solve for x
    x = 1,169,224,010,730.14/1,188,414.90
  6. Step 6: Final answer
    x = 983,851.69

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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.