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Finding the Fourth Proportional to 659,163.32, 909,669.87 and 372,666.32

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Solution

The fourth proportional to 659,163.32, 909,669.87 and 372,666.32 is: 514,293.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,163.32 : 909,669.87 = 372,666.32 : x
  2. Step 2: Convert to fraction form
    659,163.32/909,669.87 = 372,666.32/x
  3. Step 3: Cross multiply
    659,163.32x = 909,669.87 × 372,666.32
  4. Step 4: Simplify right side
    659,163.32x = 339,003,318,319.43
  5. Step 5: Solve for x
    x = 339,003,318,319.43/659,163.32
  6. Step 6: Final answer
    x = 514,293.36

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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.