Home / 389,605.29-584,430.17-109,144.41

Finding the Fourth Proportional to 389,605.29, 584,430.17 and 109,144.41

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Solution

The fourth proportional to 389,605.29, 584,430.17 and 109,144.41 is: 163,722.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,605.29 : 584,430.17 = 109,144.41 : x
  2. Step 2: Convert to fraction form
    389,605.29/584,430.17 = 109,144.41/x
  3. Step 3: Cross multiply
    389,605.29x = 584,430.17 × 109,144.41
  4. Step 4: Simplify right side
    389,605.29x = 63,787,286,090.85
  5. Step 5: Solve for x
    x = 63,787,286,090.85/389,605.29
  6. Step 6: Final answer
    x = 163,722.84

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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.