Home / 387,780.03-581,677.34-121,534.65

Finding the Fourth Proportional to 387,780.03, 581,677.34 and 121,534.65

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Solution

The fourth proportional to 387,780.03, 581,677.34 and 121,534.65 is: 182,304.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,780.03 : 581,677.34 = 121,534.65 : x
  2. Step 2: Convert to fraction form
    387,780.03/581,677.34 = 121,534.65/x
  3. Step 3: Cross multiply
    387,780.03x = 581,677.34 × 121,534.65
  4. Step 4: Simplify right side
    387,780.03x = 70,693,951,322.16
  5. Step 5: Solve for x
    x = 70,693,951,322.16/387,780.03
  6. Step 6: Final answer
    x = 182,304.26

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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.