Home / 725,114.90-1,087,672.35-370,820.90

Finding the Fourth Proportional to 725,114.90, 1,087,672.35 and 370,820.90

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Solution

The fourth proportional to 725,114.90, 1,087,672.35 and 370,820.90 is: 556,231.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,114.90 : 1,087,672.35 = 370,820.90 : x
  2. Step 2: Convert to fraction form
    725,114.90/1,087,672.35 = 370,820.90/x
  3. Step 3: Cross multiply
    725,114.90x = 1,087,672.35 × 370,820.90
  4. Step 4: Simplify right side
    725,114.90x = 403,331,639,732.12
  5. Step 5: Solve for x
    x = 403,331,639,732.12/725,114.90
  6. Step 6: Final answer
    x = 556,231.35

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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.