Home / 406,512.80-609,769.20-126,058.40

Finding the Fourth Proportional to 406,512.80, 609,769.20 and 126,058.40

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Solution

The fourth proportional to 406,512.80, 609,769.20 and 126,058.40 is: 189,087.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,512.80 : 609,769.20 = 126,058.40 : x
  2. Step 2: Convert to fraction form
    406,512.80/609,769.20 = 126,058.40/x
  3. Step 3: Cross multiply
    406,512.80x = 609,769.20 × 126,058.40
  4. Step 4: Simplify right side
    406,512.80x = 76,866,529,721.28
  5. Step 5: Solve for x
    x = 76,866,529,721.28/406,512.80
  6. Step 6: Final answer
    x = 189,087.60

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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.