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Finding the Fourth Proportional to 560,785.52, 773,897.28 and 306,138.62

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Solution

The fourth proportional to 560,785.52, 773,897.28 and 306,138.62 is: 422,478.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,785.52 : 773,897.28 = 306,138.62 : x
  2. Step 2: Convert to fraction form
    560,785.52/773,897.28 = 306,138.62/x
  3. Step 3: Cross multiply
    560,785.52x = 773,897.28 × 306,138.62
  4. Step 4: Simplify right side
    560,785.52x = 236,919,845,320.95
  5. Step 5: Solve for x
    x = 236,919,845,320.95/560,785.52
  6. Step 6: Final answer
    x = 422,478.54

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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.