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Finding the Fourth Proportional to 891,851.10, 1,228,734.51 and 849,335.82

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Solution

The fourth proportional to 891,851.10, 1,228,734.51 and 849,335.82 is: 1,170,159.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,851.10 : 1,228,734.51 = 849,335.82 : x
  2. Step 2: Convert to fraction form
    891,851.10/1,228,734.51 = 849,335.82/x
  3. Step 3: Cross multiply
    891,851.10x = 1,228,734.51 × 849,335.82
  4. Step 4: Simplify right side
    891,851.10x = 1,043,608,232,613.15
  5. Step 5: Solve for x
    x = 1,043,608,232,613.15/891,851.10
  6. Step 6: Final answer
    x = 1,170,159.72

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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.