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Finding the Fourth Proportional to 659,104.49, 909,528.86 and 372,607.49

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Solution

The fourth proportional to 659,104.49, 909,528.86 and 372,607.49 is: 514,178.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,104.49 : 909,528.86 = 372,607.49 : x
  2. Step 2: Convert to fraction form
    659,104.49/909,528.86 = 372,607.49/x
  3. Step 3: Cross multiply
    659,104.49x = 909,528.86 × 372,607.49
  4. Step 4: Simplify right side
    659,104.49x = 338,897,261,991.04
  5. Step 5: Solve for x
    x = 338,897,261,991.04/659,104.49
  6. Step 6: Final answer
    x = 514,178.36

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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.