Home / 697,079.20-1,044,236.40-415,760.80

Finding the Fourth Proportional to 697,079.20, 1,044,236.40 and 415,760.80

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Solution

The fourth proportional to 697,079.20, 1,044,236.40 and 415,760.80 is: 622,816.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,079.20 : 1,044,236.40 = 415,760.80 : x
  2. Step 2: Convert to fraction form
    697,079.20/1,044,236.40 = 415,760.80/x
  3. Step 3: Cross multiply
    697,079.20x = 1,044,236.40 × 415,760.80
  4. Step 4: Simplify right side
    697,079.20x = 434,152,561,053.12
  5. Step 5: Solve for x
    x = 434,152,561,053.12/697,079.20
  6. Step 6: Final answer
    x = 622,816.69

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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.