Home / 851,274.60-1,174,766.97-469,315.05

Finding the Fourth Proportional to 851,274.60, 1,174,766.97 and 469,315.05

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Solution

The fourth proportional to 851,274.60, 1,174,766.97 and 469,315.05 is: 647,659.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,274.60 : 1,174,766.97 = 469,315.05 : x
  2. Step 2: Convert to fraction form
    851,274.60/1,174,766.97 = 469,315.05/x
  3. Step 3: Cross multiply
    851,274.60x = 1,174,766.97 × 469,315.05
  4. Step 4: Simplify right side
    851,274.60x = 551,335,819,263.90
  5. Step 5: Solve for x
    x = 551,335,819,263.90/851,274.60
  6. Step 6: Final answer
    x = 647,659.19

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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.