Home / 1,761,438.80-2,642,158.20-1,131,064.40

Finding the Fourth Proportional to 1,761,438.80, 2,642,158.20 and 1,131,064.40

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Solution

The fourth proportional to 1,761,438.80, 2,642,158.20 and 1,131,064.40 is: 1,696,596.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,761,438.80 : 2,642,158.20 = 1,131,064.40 : x
  2. Step 2: Convert to fraction form
    1,761,438.80/2,642,158.20 = 1,131,064.40/x
  3. Step 3: Cross multiply
    1,761,438.80x = 2,642,158.20 × 1,131,064.40
  4. Step 4: Simplify right side
    1,761,438.80x = 2,988,451,079,188.08
  5. Step 5: Solve for x
    x = 2,988,451,079,188.08/1,761,438.80
  6. Step 6: Final answer
    x = 1,696,596.60

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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.