Home / 639,102.52-882,281.07-397,462.94

Finding the Fourth Proportional to 639,102.52, 882,281.07 and 397,462.94

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Solution

The fourth proportional to 639,102.52, 882,281.07 and 397,462.94 is: 548,697.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,102.52 : 882,281.07 = 397,462.94 : x
  2. Step 2: Convert to fraction form
    639,102.52/882,281.07 = 397,462.94/x
  3. Step 3: Cross multiply
    639,102.52x = 882,281.07 × 397,462.94
  4. Step 4: Simplify right side
    639,102.52x = 350,674,027,988.55
  5. Step 5: Solve for x
    x = 350,674,027,988.55/639,102.52
  6. Step 6: Final answer
    x = 548,697.61

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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.