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Finding the Fourth Proportional to 659,225.34, 909,725.94 and 372,755.61

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Solution

The fourth proportional to 659,225.34, 909,725.94 and 372,755.61 is: 514,399.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,225.34 : 909,725.94 = 372,755.61 : x
  2. Step 2: Convert to fraction form
    659,225.34/909,725.94 = 372,755.61/x
  3. Step 3: Cross multiply
    659,225.34x = 909,725.94 × 372,755.61
  4. Step 4: Simplify right side
    659,225.34x = 339,105,447,697.52
  5. Step 5: Solve for x
    x = 339,105,447,697.52/659,225.34
  6. Step 6: Final answer
    x = 514,399.90

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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.