Home / 725,789.40-1,087,809.30-370,620.60

Finding the Fourth Proportional to 725,789.40, 1,087,809.30 and 370,620.60

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Solution

The fourth proportional to 725,789.40, 1,087,809.30 and 370,620.60 is: 555,484.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,789.40 : 1,087,809.30 = 370,620.60 : x
  2. Step 2: Convert to fraction form
    725,789.40/1,087,809.30 = 370,620.60/x
  3. Step 3: Cross multiply
    725,789.40x = 1,087,809.30 × 370,620.60
  4. Step 4: Simplify right side
    725,789.40x = 403,164,535,451.58
  5. Step 5: Solve for x
    x = 403,164,535,451.58/725,789.40
  6. Step 6: Final answer
    x = 555,484.19

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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.