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Finding the Fourth Proportional to 718,785.80, 992,243.22 and 464,261.12

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Solution

The fourth proportional to 718,785.80, 992,243.22 and 464,261.12 is: 640,886.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,785.80 : 992,243.22 = 464,261.12 : x
  2. Step 2: Convert to fraction form
    718,785.80/992,243.22 = 464,261.12/x
  3. Step 3: Cross multiply
    718,785.80x = 992,243.22 × 464,261.12
  4. Step 4: Simplify right side
    718,785.80x = 460,659,948,629.61
  5. Step 5: Solve for x
    x = 460,659,948,629.61/718,785.80
  6. Step 6: Final answer
    x = 640,886.27

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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.