Home / 1,188,000.90-1,782,001.35-656,559.90

Finding the Fourth Proportional to 1,188,000.90, 1,782,001.35 and 656,559.90

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Solution

The fourth proportional to 1,188,000.90, 1,782,001.35 and 656,559.90 is: 984,839.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,000.90 : 1,782,001.35 = 656,559.90 : x
  2. Step 2: Convert to fraction form
    1,188,000.90/1,782,001.35 = 656,559.90/x
  3. Step 3: Cross multiply
    1,188,000.90x = 1,782,001.35 × 656,559.90
  4. Step 4: Simplify right side
    1,188,000.90x = 1,169,990,628,155.87
  5. Step 5: Solve for x
    x = 1,169,990,628,155.87/1,188,000.90
  6. Step 6: Final answer
    x = 984,839.85

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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.