Home / 659,949.12-990,030.90-204,433.98

Finding the Fourth Proportional to 659,949.12, 990,030.90 and 204,433.98

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Solution

The fourth proportional to 659,949.12, 990,030.90 and 204,433.98 is: 306,684.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,949.12 : 990,030.90 = 204,433.98 : x
  2. Step 2: Convert to fraction form
    659,949.12/990,030.90 = 204,433.98/x
  3. Step 3: Cross multiply
    659,949.12x = 990,030.90 × 204,433.98
  4. Step 4: Simplify right side
    659,949.12x = 202,395,957,209.98
  5. Step 5: Solve for x
    x = 202,395,957,209.98/659,949.12
  6. Step 6: Final answer
    x = 306,684.18

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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.