Home / 725,009.80-1,087,514.70-609,536.20

Finding the Fourth Proportional to 725,009.80, 1,087,514.70 and 609,536.20

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Solution

The fourth proportional to 725,009.80, 1,087,514.70 and 609,536.20 is: 914,304.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,009.80 : 1,087,514.70 = 609,536.20 : x
  2. Step 2: Convert to fraction form
    725,009.80/1,087,514.70 = 609,536.20/x
  3. Step 3: Cross multiply
    725,009.80x = 1,087,514.70 × 609,536.20
  4. Step 4: Simplify right side
    725,009.80x = 662,879,577,682.14
  5. Step 5: Solve for x
    x = 662,879,577,682.14/725,009.80
  6. Step 6: Final answer
    x = 914,304.30

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Double scale
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Similar ratio
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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.