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Finding the Fourth Proportional to 615,958.93, 849,968.01 and 343,989.08

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Solution

The fourth proportional to 615,958.93, 849,968.01 and 343,989.08 is: 474,674.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,958.93 : 849,968.01 = 343,989.08 : x
  2. Step 2: Convert to fraction form
    615,958.93/849,968.01 = 343,989.08/x
  3. Step 3: Cross multiply
    615,958.93x = 849,968.01 × 343,989.08
  4. Step 4: Simplify right side
    615,958.93x = 292,379,713,789.33
  5. Step 5: Solve for x
    x = 292,379,713,789.33/615,958.93
  6. Step 6: Final answer
    x = 474,674.04

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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.