Home / 579,439.80-869,246.10-205,433.40

Finding the Fourth Proportional to 579,439.80, 869,246.10 and 205,433.40

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Solution

The fourth proportional to 579,439.80, 869,246.10 and 205,433.40 is: 308,180.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,439.80 : 869,246.10 = 205,433.40 : x
  2. Step 2: Convert to fraction form
    579,439.80/869,246.10 = 205,433.40/x
  3. Step 3: Cross multiply
    579,439.80x = 869,246.10 × 205,433.40
  4. Step 4: Simplify right side
    579,439.80x = 178,572,181,759.74
  5. Step 5: Solve for x
    x = 178,572,181,759.74/579,439.80
  6. Step 6: Final answer
    x = 308,180.73

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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.