Home / 1,385,693.40-2,079,231.30-787,114.20

Finding the Fourth Proportional to 1,385,693.40, 2,079,231.30 and 787,114.20

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Solution

The fourth proportional to 1,385,693.40, 2,079,231.30 and 787,114.20 is: 1,181,063.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,693.40 : 2,079,231.30 = 787,114.20 : x
  2. Step 2: Convert to fraction form
    1,385,693.40/2,079,231.30 = 787,114.20/x
  3. Step 3: Cross multiply
    1,385,693.40x = 2,079,231.30 × 787,114.20
  4. Step 4: Simplify right side
    1,385,693.40x = 1,636,592,481,314.46
  5. Step 5: Solve for x
    x = 1,636,592,481,314.46/1,385,693.40
  6. Step 6: Final answer
    x = 1,181,063.92

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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.