Home / 1,121,777.02-1,548,031.12-686,162.31

Finding the Fourth Proportional to 1,121,777.02, 1,548,031.12 and 686,162.31

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Solution

The fourth proportional to 1,121,777.02, 1,548,031.12 and 686,162.31 is: 946,891.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,777.02 : 1,548,031.12 = 686,162.31 : x
  2. Step 2: Convert to fraction form
    1,121,777.02/1,548,031.12 = 686,162.31/x
  3. Step 3: Cross multiply
    1,121,777.02x = 1,548,031.12 × 686,162.31
  4. Step 4: Simplify right side
    1,121,777.02x = 1,062,200,609,251.09
  5. Step 5: Solve for x
    x = 1,062,200,609,251.09/1,121,777.02
  6. Step 6: Final answer
    x = 946,891.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.