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Finding the Fourth Proportional to 615,489.64, 849,517.40 and 360,922.84

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Solution

The fourth proportional to 615,489.64, 849,517.40 and 360,922.84 is: 498,156.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,489.64 : 849,517.40 = 360,922.84 : x
  2. Step 2: Convert to fraction form
    615,489.64/849,517.40 = 360,922.84/x
  3. Step 3: Cross multiply
    615,489.64x = 849,517.40 × 360,922.84
  4. Step 4: Simplify right side
    615,489.64x = 306,610,232,637.42
  5. Step 5: Solve for x
    x = 306,610,232,637.42/615,489.64
  6. Step 6: Final answer
    x = 498,156.61

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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.