Home / 1,012,981.62-1,520,542.85-990,110.46

Finding the Fourth Proportional to 1,012,981.62, 1,520,542.85 and 990,110.46

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Solution

The fourth proportional to 1,012,981.62, 1,520,542.85 and 990,110.46 is: 1,486,211.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,981.62 : 1,520,542.85 = 990,110.46 : x
  2. Step 2: Convert to fraction form
    1,012,981.62/1,520,542.85 = 990,110.46/x
  3. Step 3: Cross multiply
    1,012,981.62x = 1,520,542.85 × 990,110.46
  4. Step 4: Simplify right side
    1,012,981.62x = 1,505,505,380,663.21
  5. Step 5: Solve for x
    x = 1,505,505,380,663.21/1,012,981.62
  6. Step 6: Final answer
    x = 1,486,211.94

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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.