Home / 725,780.40-1,087,795.80-370,611.60

Finding the Fourth Proportional to 725,780.40, 1,087,795.80 and 370,611.60

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Solution

The fourth proportional to 725,780.40, 1,087,795.80 and 370,611.60 is: 555,470.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,780.40 : 1,087,795.80 = 370,611.60 : x
  2. Step 2: Convert to fraction form
    725,780.40/1,087,795.80 = 370,611.60/x
  3. Step 3: Cross multiply
    725,780.40x = 1,087,795.80 × 370,611.60
  4. Step 4: Simplify right side
    725,780.40x = 403,149,741,911.28
  5. Step 5: Solve for x
    x = 403,149,741,911.28/725,780.40
  6. Step 6: Final answer
    x = 555,470.69

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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.