Home / 1,268,985.72-1,751,196.30-725,290.20

Finding the Fourth Proportional to 1,268,985.72, 1,751,196.30 and 725,290.20

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Solution

The fourth proportional to 1,268,985.72, 1,751,196.30 and 725,290.20 is: 1,000,898.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,985.72 : 1,751,196.30 = 725,290.20 : x
  2. Step 2: Convert to fraction form
    1,268,985.72/1,751,196.30 = 725,290.20/x
  3. Step 3: Cross multiply
    1,268,985.72x = 1,751,196.30 × 725,290.20
  4. Step 4: Simplify right side
    1,268,985.72x = 1,270,125,514,666.26
  5. Step 5: Solve for x
    x = 1,270,125,514,666.26/1,268,985.72
  6. Step 6: Final answer
    x = 1,000,898.19

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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.