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Finding the Fourth Proportional to 980,594.43, 1,353,255 and 545,020.46

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Solution

The fourth proportional to 980,594.43, 1,353,255 and 545,020.46 is: 752,147.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,594.43 : 1,353,255 = 545,020.46 : x
  2. Step 2: Convert to fraction form
    980,594.43/1,353,255 = 545,020.46/x
  3. Step 3: Cross multiply
    980,594.43x = 1,353,255 × 545,020.46
  4. Step 4: Simplify right side
    980,594.43x = 737,551,662,597.30
  5. Step 5: Solve for x
    x = 737,551,662,597.30/980,594.43
  6. Step 6: Final answer
    x = 752,147.51

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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.