Home / 3,519,965.80-5,279,948.70-1,275,812.20

Finding the Fourth Proportional to 3,519,965.80, 5,279,948.70 and 1,275,812.20

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Solution

The fourth proportional to 3,519,965.80, 5,279,948.70 and 1,275,812.20 is: 1,913,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519,965.80 : 5,279,948.70 = 1,275,812.20 : x
  2. Step 2: Convert to fraction form
    3,519,965.80/5,279,948.70 = 1,275,812.20/x
  3. Step 3: Cross multiply
    3,519,965.80x = 5,279,948.70 × 1,275,812.20
  4. Step 4: Simplify right side
    3,519,965.80x = 6,736,222,966,834.14
  5. Step 5: Solve for x
    x = 6,736,222,966,834.14/3,519,965.80
  6. Step 6: Final answer
    x = 1,913,718.30

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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.