Home / 1,102,912.20-1,654,368.30-990,937.80

Finding the Fourth Proportional to 1,102,912.20, 1,654,368.30 and 990,937.80

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Solution

The fourth proportional to 1,102,912.20, 1,654,368.30 and 990,937.80 is: 1,486,406.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,912.20 : 1,654,368.30 = 990,937.80 : x
  2. Step 2: Convert to fraction form
    1,102,912.20/1,654,368.30 = 990,937.80/x
  3. Step 3: Cross multiply
    1,102,912.20x = 1,654,368.30 × 990,937.80
  4. Step 4: Simplify right side
    1,102,912.20x = 1,639,376,083,591.74
  5. Step 5: Solve for x
    x = 1,639,376,083,591.74/1,102,912.20
  6. Step 6: Final answer
    x = 1,486,406.70

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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.