Home / 1,387,192.80-2,080,270.80-965,215.20

Finding the Fourth Proportional to 1,387,192.80, 2,080,270.80 and 965,215.20

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Solution

The fourth proportional to 1,387,192.80, 2,080,270.80 and 965,215.20 is: 1,447,462.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,192.80 : 2,080,270.80 = 965,215.20 : x
  2. Step 2: Convert to fraction form
    1,387,192.80/2,080,270.80 = 965,215.20/x
  3. Step 3: Cross multiply
    1,387,192.80x = 2,080,270.80 × 965,215.20
  4. Step 4: Simplify right side
    1,387,192.80x = 2,007,908,996,276.16
  5. Step 5: Solve for x
    x = 2,007,908,996,276.16/1,387,192.80
  6. Step 6: Final answer
    x = 1,447,462.09

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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.