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Finding the Fourth Proportional to 615,736.17, 849,708.06 and 343,808.84

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Solution

The fourth proportional to 615,736.17, 849,708.06 and 343,808.84 is: 474,451.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,736.17 : 849,708.06 = 343,808.84 : x
  2. Step 2: Convert to fraction form
    615,736.17/849,708.06 = 343,808.84/x
  3. Step 3: Cross multiply
    615,736.17x = 849,708.06 × 343,808.84
  4. Step 4: Simplify right side
    615,736.17x = 292,137,138,198.71
  5. Step 5: Solve for x
    x = 292,137,138,198.71/615,736.17
  6. Step 6: Final answer
    x = 474,451.81

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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.