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Finding the Fourth Proportional to 659,158.03, 909,662.58 and 372,661.03

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Solution

The fourth proportional to 659,158.03, 909,662.58 and 372,661.03 is: 514,286.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,158.03 : 909,662.58 = 372,661.03 : x
  2. Step 2: Convert to fraction form
    659,158.03/909,662.58 = 372,661.03/x
  3. Step 3: Cross multiply
    659,158.03x = 909,662.58 × 372,661.03
  4. Step 4: Simplify right side
    659,158.03x = 338,995,794,015.26
  5. Step 5: Solve for x
    x = 338,995,794,015.26/659,158.03
  6. Step 6: Final answer
    x = 514,286.07

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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.