Home / 817,829.20-1,226,743.80-647,243.20

Finding the Fourth Proportional to 817,829.20, 1,226,743.80 and 647,243.20

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Solution

The fourth proportional to 817,829.20, 1,226,743.80 and 647,243.20 is: 970,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,829.20 : 1,226,743.80 = 647,243.20 : x
  2. Step 2: Convert to fraction form
    817,829.20/1,226,743.80 = 647,243.20/x
  3. Step 3: Cross multiply
    817,829.20x = 1,226,743.80 × 647,243.20
  4. Step 4: Simplify right side
    817,829.20x = 794,001,582,692.16
  5. Step 5: Solve for x
    x = 794,001,582,692.16/817,829.20
  6. Step 6: Final answer
    x = 970,864.80

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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.