Home / 389,824.47-584,757.63-123,605.74

Finding the Fourth Proportional to 389,824.47, 584,757.63 and 123,605.74

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Solution

The fourth proportional to 389,824.47, 584,757.63 and 123,605.74 is: 185,415.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,824.47 : 584,757.63 = 123,605.74 : x
  2. Step 2: Convert to fraction form
    389,824.47/584,757.63 = 123,605.74/x
  3. Step 3: Cross multiply
    389,824.47x = 584,757.63 × 123,605.74
  4. Step 4: Simplify right side
    389,824.47x = 72,279,399,576.80
  5. Step 5: Solve for x
    x = 72,279,399,576.80/389,824.47
  6. Step 6: Final answer
    x = 185,415.25

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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.