Home / 989,117.36-1,481,981.12-664,296.56

Finding the Fourth Proportional to 989,117.36, 1,481,981.12 and 664,296.56

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Solution

The fourth proportional to 989,117.36, 1,481,981.12 and 664,296.56 is: 995,306.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,117.36 : 1,481,981.12 = 664,296.56 : x
  2. Step 2: Convert to fraction form
    989,117.36/1,481,981.12 = 664,296.56/x
  3. Step 3: Cross multiply
    989,117.36x = 1,481,981.12 × 664,296.56
  4. Step 4: Simplify right side
    989,117.36x = 984,474,960,000.95
  5. Step 5: Solve for x
    x = 984,474,960,000.95/989,117.36
  6. Step 6: Final answer
    x = 995,306.52

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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.