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Finding the Fourth Proportional to 659,201.06, 909,715.38 and 372,764

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Solution

The fourth proportional to 659,201.06, 909,715.38 and 372,764 is: 514,424.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,201.06 : 909,715.38 = 372,764 : x
  2. Step 2: Convert to fraction form
    659,201.06/909,715.38 = 372,764/x
  3. Step 3: Cross multiply
    659,201.06x = 909,715.38 × 372,764
  4. Step 4: Simplify right side
    659,201.06x = 339,109,143,910.32
  5. Step 5: Solve for x
    x = 339,109,143,910.32/659,201.06
  6. Step 6: Final answer
    x = 514,424.45

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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.