Home / 785,258.31-1,083,712.46-445,748.43

Finding the Fourth Proportional to 785,258.31, 1,083,712.46 and 445,748.43

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Solution

The fourth proportional to 785,258.31, 1,083,712.46 and 445,748.43 is: 615,164.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,258.31 : 1,083,712.46 = 445,748.43 : x
  2. Step 2: Convert to fraction form
    785,258.31/1,083,712.46 = 445,748.43/x
  3. Step 3: Cross multiply
    785,258.31x = 1,083,712.46 × 445,748.43
  4. Step 4: Simplify right side
    785,258.31x = 483,063,125,387.70
  5. Step 5: Solve for x
    x = 483,063,125,387.70/785,258.31
  6. Step 6: Final answer
    x = 615,164.61

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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.