Home / 696,999.20-1,044,116.40-415,680.80

Finding the Fourth Proportional to 696,999.20, 1,044,116.40 and 415,680.80

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Solution

The fourth proportional to 696,999.20, 1,044,116.40 and 415,680.80 is: 622,696.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,999.20 : 1,044,116.40 = 415,680.80 : x
  2. Step 2: Convert to fraction form
    696,999.20/1,044,116.40 = 415,680.80/x
  3. Step 3: Cross multiply
    696,999.20x = 1,044,116.40 × 415,680.80
  4. Step 4: Simplify right side
    696,999.20x = 434,019,140,445.12
  5. Step 5: Solve for x
    x = 434,019,140,445.12/696,999.20
  6. Step 6: Final answer
    x = 622,696.76

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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.