Home / 990,212.10-1,485,318.15-887,568.90

Finding the Fourth Proportional to 990,212.10, 1,485,318.15 and 887,568.90

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Solution

The fourth proportional to 990,212.10, 1,485,318.15 and 887,568.90 is: 1,331,353.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,212.10 : 1,485,318.15 = 887,568.90 : x
  2. Step 2: Convert to fraction form
    990,212.10/1,485,318.15 = 887,568.90/x
  3. Step 3: Cross multiply
    990,212.10x = 1,485,318.15 × 887,568.90
  4. Step 4: Simplify right side
    990,212.10x = 1,318,322,196,545.53
  5. Step 5: Solve for x
    x = 1,318,322,196,545.53/990,212.10
  6. Step 6: Final answer
    x = 1,331,353.35

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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.