Home / 388,947.50-583,519.65-108,464.78

Finding the Fourth Proportional to 388,947.50, 583,519.65 and 108,464.78

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Solution

The fourth proportional to 388,947.50, 583,519.65 and 108,464.78 is: 162,724.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,947.50 : 583,519.65 = 108,464.78 : x
  2. Step 2: Convert to fraction form
    388,947.50/583,519.65 = 108,464.78/x
  3. Step 3: Cross multiply
    388,947.50x = 583,519.65 × 108,464.78
  4. Step 4: Simplify right side
    388,947.50x = 63,291,330,462.93
  5. Step 5: Solve for x
    x = 63,291,330,462.93/388,947.50
  6. Step 6: Final answer
    x = 162,724.61

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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.