Home / 566,286.28-781,474.62-311,637.47

Finding the Fourth Proportional to 566,286.28, 781,474.62 and 311,637.47

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Solution

The fourth proportional to 566,286.28, 781,474.62 and 311,637.47 is: 430,059.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,286.28 : 781,474.62 = 311,637.47 : x
  2. Step 2: Convert to fraction form
    566,286.28/781,474.62 = 311,637.47/x
  3. Step 3: Cross multiply
    566,286.28x = 781,474.62 × 311,637.47
  4. Step 4: Simplify right side
    566,286.28x = 243,536,771,887.82
  5. Step 5: Solve for x
    x = 243,536,771,887.82/566,286.28
  6. Step 6: Final answer
    x = 430,059.46

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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.