Home / 395,221.40-592,829.67-128,982.10

Finding the Fourth Proportional to 395,221.40, 592,829.67 and 128,982.10

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Solution

The fourth proportional to 395,221.40, 592,829.67 and 128,982.10 is: 193,472.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,221.40 : 592,829.67 = 128,982.10 : x
  2. Step 2: Convert to fraction form
    395,221.40/592,829.67 = 128,982.10/x
  3. Step 3: Cross multiply
    395,221.40x = 592,829.67 × 128,982.10
  4. Step 4: Simplify right side
    395,221.40x = 76,464,415,778.91
  5. Step 5: Solve for x
    x = 76,464,415,778.91/395,221.40
  6. Step 6: Final answer
    x = 193,472.36

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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.