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Finding the Fourth Proportional to 718,460.89, 991,104.96 and 446,425.43

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Solution

The fourth proportional to 718,460.89, 991,104.96 and 446,425.43 is: 615,836.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,460.89 : 991,104.96 = 446,425.43 : x
  2. Step 2: Convert to fraction form
    718,460.89/991,104.96 = 446,425.43/x
  3. Step 3: Cross multiply
    718,460.89x = 991,104.96 × 446,425.43
  4. Step 4: Simplify right side
    718,460.89x = 442,454,457,943.13
  5. Step 5: Solve for x
    x = 442,454,457,943.13/718,460.89
  6. Step 6: Final answer
    x = 615,836.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.