Home / 427,217.12-589,815.45-266,290.15

Finding the Fourth Proportional to 427,217.12, 589,815.45 and 266,290.15

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Solution

The fourth proportional to 427,217.12, 589,815.45 and 266,290.15 is: 367,639.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,217.12 : 589,815.45 = 266,290.15 : x
  2. Step 2: Convert to fraction form
    427,217.12/589,815.45 = 266,290.15/x
  3. Step 3: Cross multiply
    427,217.12x = 589,815.45 × 266,290.15
  4. Step 4: Simplify right side
    427,217.12x = 157,062,041,046.96
  5. Step 5: Solve for x
    x = 157,062,041,046.96/427,217.12
  6. Step 6: Final answer
    x = 367,639.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.