Home / 718,418.33-1,077,627.50-318,965.21

Finding the Fourth Proportional to 718,418.33, 1,077,627.50 and 318,965.21

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Solution

The fourth proportional to 718,418.33, 1,077,627.50 and 318,965.21 is: 478,447.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,418.33 : 1,077,627.50 = 318,965.21 : x
  2. Step 2: Convert to fraction form
    718,418.33/1,077,627.50 = 318,965.21/x
  3. Step 3: Cross multiply
    718,418.33x = 1,077,627.50 × 318,965.21
  4. Step 4: Simplify right side
    718,418.33x = 343,725,680,244.45
  5. Step 5: Solve for x
    x = 343,725,680,244.45/718,418.33
  6. Step 6: Final answer
    x = 478,447.82

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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.