Home / 1,387,233.80-2,080,332.30-545,611.40

Finding the Fourth Proportional to 1,387,233.80, 2,080,332.30 and 545,611.40

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Solution

The fourth proportional to 1,387,233.80, 2,080,332.30 and 545,611.40 is: 818,213.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,233.80 : 2,080,332.30 = 545,611.40 : x
  2. Step 2: Convert to fraction form
    1,387,233.80/2,080,332.30 = 545,611.40/x
  3. Step 3: Cross multiply
    1,387,233.80x = 2,080,332.30 × 545,611.40
  4. Step 4: Simplify right side
    1,387,233.80x = 1,135,053,018,668.22
  5. Step 5: Solve for x
    x = 1,135,053,018,668.22/1,387,233.80
  6. Step 6: Final answer
    x = 818,213.21

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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.