Home / 1,325,142-1,828,695.96-721,530

Finding the Fourth Proportional to 1,325,142, 1,828,695.96 and 721,530

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Solution

The fourth proportional to 1,325,142, 1,828,695.96 and 721,530 is: 995,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,142 : 1,828,695.96 = 721,530 : x
  2. Step 2: Convert to fraction form
    1,325,142/1,828,695.96 = 721,530/x
  3. Step 3: Cross multiply
    1,325,142x = 1,828,695.96 × 721,530
  4. Step 4: Simplify right side
    1,325,142x = 1,319,458,996,018.80
  5. Step 5: Solve for x
    x = 1,319,458,996,018.80/1,325,142
  6. Step 6: Final answer
    x = 995,711.40

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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.