Home / 980,920.80-1,471,381.20-904,157.10

Finding the Fourth Proportional to 980,920.80, 1,471,381.20 and 904,157.10

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Solution

The fourth proportional to 980,920.80, 1,471,381.20 and 904,157.10 is: 1,356,235.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,920.80 : 1,471,381.20 = 904,157.10 : x
  2. Step 2: Convert to fraction form
    980,920.80/1,471,381.20 = 904,157.10/x
  3. Step 3: Cross multiply
    980,920.80x = 1,471,381.20 × 904,157.10
  4. Step 4: Simplify right side
    980,920.80x = 1,330,359,758,786.52
  5. Step 5: Solve for x
    x = 1,330,359,758,786.52/980,920.80
  6. Step 6: Final answer
    x = 1,356,235.65

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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.