Home / 787,966.20-1,181,949.30-647,998.20

Finding the Fourth Proportional to 787,966.20, 1,181,949.30 and 647,998.20

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Solution

The fourth proportional to 787,966.20, 1,181,949.30 and 647,998.20 is: 971,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,966.20 : 1,181,949.30 = 647,998.20 : x
  2. Step 2: Convert to fraction form
    787,966.20/1,181,949.30 = 647,998.20/x
  3. Step 3: Cross multiply
    787,966.20x = 1,181,949.30 × 647,998.20
  4. Step 4: Simplify right side
    787,966.20x = 765,901,018,891.26
  5. Step 5: Solve for x
    x = 765,901,018,891.26/787,966.20
  6. Step 6: Final answer
    x = 971,997.30

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Double scale
Find fourth proportional to 787,967.20, 1,181,950.80 and 647,999.20
Similar ratio
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1.5x scale

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.