Home / 566,481.12-781,743.84-311,832.24

Finding the Fourth Proportional to 566,481.12, 781,743.84 and 311,832.24

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Solution

The fourth proportional to 566,481.12, 781,743.84 and 311,832.24 is: 430,328.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,481.12 : 781,743.84 = 311,832.24 : x
  2. Step 2: Convert to fraction form
    566,481.12/781,743.84 = 311,832.24/x
  3. Step 3: Cross multiply
    566,481.12x = 781,743.84 × 311,832.24
  4. Step 4: Simplify right side
    566,481.12x = 243,772,932,733.40
  5. Step 5: Solve for x
    x = 243,772,932,733.40/566,481.12
  6. Step 6: Final answer
    x = 430,328.43

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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.