Home / 728,130.24-1,091,406.38-372,656.88

Finding the Fourth Proportional to 728,130.24, 1,091,406.38 and 372,656.88

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Solution

The fourth proportional to 728,130.24, 1,091,406.38 and 372,656.88 is: 558,581.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,130.24 : 1,091,406.38 = 372,656.88 : x
  2. Step 2: Convert to fraction form
    728,130.24/1,091,406.38 = 372,656.88/x
  3. Step 3: Cross multiply
    728,130.24x = 1,091,406.38 × 372,656.88
  4. Step 4: Simplify right side
    728,130.24x = 406,720,096,382.89
  5. Step 5: Solve for x
    x = 406,720,096,382.89/728,130.24
  6. Step 6: Final answer
    x = 558,581.52

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1.5x scale

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.