Home / 387,743.62-581,615.57-121,524.79

Finding the Fourth Proportional to 387,743.62, 581,615.57 and 121,524.79

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Solution

The fourth proportional to 387,743.62, 581,615.57 and 121,524.79 is: 182,287.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,743.62 : 581,615.57 = 121,524.79 : x
  2. Step 2: Convert to fraction form
    387,743.62/581,615.57 = 121,524.79/x
  3. Step 3: Cross multiply
    387,743.62x = 581,615.57 × 121,524.79
  4. Step 4: Simplify right side
    387,743.62x = 70,680,709,397.36
  5. Step 5: Solve for x
    x = 70,680,709,397.36/387,743.62
  6. Step 6: Final answer
    x = 182,287.23

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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.