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Finding the Fourth Proportional to 659,173.06, 909,683.32 and 372,676.06

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Solution

The fourth proportional to 659,173.06, 909,683.32 and 372,676.06 is: 514,306.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,173.06 : 909,683.32 = 372,676.06 : x
  2. Step 2: Convert to fraction form
    659,173.06/909,683.32 = 372,676.06/x
  3. Step 3: Cross multiply
    659,173.06x = 909,683.32 × 372,676.06
  4. Step 4: Simplify right side
    659,173.06x = 339,017,195,545.32
  5. Step 5: Solve for x
    x = 339,017,195,545.32/659,173.06
  6. Step 6: Final answer
    x = 514,306.81

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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.