Home / 986,101.62-1,479,374.10-312,223.20

Finding the Fourth Proportional to 986,101.62, 1,479,374.10 and 312,223.20

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Solution

The fourth proportional to 986,101.62, 1,479,374.10 and 312,223.20 is: 468,404.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,101.62 : 1,479,374.10 = 312,223.20 : x
  2. Step 2: Convert to fraction form
    986,101.62/1,479,374.10 = 312,223.20/x
  3. Step 3: Cross multiply
    986,101.62x = 1,479,374.10 × 312,223.20
  4. Step 4: Simplify right side
    986,101.62x = 461,894,915,499.12
  5. Step 5: Solve for x
    x = 461,894,915,499.12/986,101.62
  6. Step 6: Final answer
    x = 468,404.99

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1.5x scale

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.