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Finding the Fourth Proportional to 449,031.48, 619,657.74 and 247,814.52

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Solution

The fourth proportional to 449,031.48, 619,657.74 and 247,814.52 is: 341,980.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,031.48 : 619,657.74 = 247,814.52 : x
  2. Step 2: Convert to fraction form
    449,031.48/619,657.74 = 247,814.52/x
  3. Step 3: Cross multiply
    449,031.48x = 619,657.74 × 247,814.52
  4. Step 4: Simplify right side
    449,031.48x = 153,560,185,402.39
  5. Step 5: Solve for x
    x = 153,560,185,402.39/449,031.48
  6. Step 6: Final answer
    x = 341,980.89

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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.