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Finding the Fourth Proportional to 615,694.31, 849,650.11 and 343,766.84

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Solution

The fourth proportional to 615,694.31, 849,650.11 and 343,766.84 is: 474,393.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,694.31 : 849,650.11 = 343,766.84 : x
  2. Step 2: Convert to fraction form
    615,694.31/849,650.11 = 343,766.84/x
  3. Step 3: Cross multiply
    615,694.31x = 849,650.11 × 343,766.84
  4. Step 4: Simplify right side
    615,694.31x = 292,081,528,312.69
  5. Step 5: Solve for x
    x = 292,081,528,312.69/615,694.31
  6. Step 6: Final answer
    x = 474,393.74

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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.