Home / 1,434,143.80-2,151,215.70-986,246.20

Finding the Fourth Proportional to 1,434,143.80, 2,151,215.70 and 986,246.20

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Solution

The fourth proportional to 1,434,143.80, 2,151,215.70 and 986,246.20 is: 1,479,369.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,143.80 : 2,151,215.70 = 986,246.20 : x
  2. Step 2: Convert to fraction form
    1,434,143.80/2,151,215.70 = 986,246.20/x
  3. Step 3: Cross multiply
    1,434,143.80x = 2,151,215.70 × 986,246.20
  4. Step 4: Simplify right side
    1,434,143.80x = 2,121,628,309,505.34
  5. Step 5: Solve for x
    x = 2,121,628,309,505.34/1,434,143.80
  6. Step 6: Final answer
    x = 1,479,369.30

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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.