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Finding the Fourth Proportional to 659,171.06, 909,680.56 and 372,674.06

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Solution

The fourth proportional to 659,171.06, 909,680.56 and 372,674.06 is: 514,304.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,171.06 : 909,680.56 = 372,674.06 : x
  2. Step 2: Convert to fraction form
    659,171.06/909,680.56 = 372,674.06/x
  3. Step 3: Cross multiply
    659,171.06x = 909,680.56 × 372,674.06
  4. Step 4: Simplify right side
    659,171.06x = 339,014,347,598.27
  5. Step 5: Solve for x
    x = 339,014,347,598.27/659,171.06
  6. Step 6: Final answer
    x = 514,304.05

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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.