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Finding the Fourth Proportional to 566,481.88, 781,736.70 and 311,826.52

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Solution

The fourth proportional to 566,481.88, 781,736.70 and 311,826.52 is: 430,316.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,481.88 : 781,736.70 = 311,826.52 : x
  2. Step 2: Convert to fraction form
    566,481.88/781,736.70 = 311,826.52/x
  3. Step 3: Cross multiply
    566,481.88x = 781,736.70 × 311,826.52
  4. Step 4: Simplify right side
    566,481.88x = 243,766,234,717.28
  5. Step 5: Solve for x
    x = 243,766,234,717.28/566,481.88
  6. Step 6: Final answer
    x = 430,316.03

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1.5x scale

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.