Home / 566,134.40-781,277.38-311,486.06

Finding the Fourth Proportional to 566,134.40, 781,277.38 and 311,486.06

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Solution

The fourth proportional to 566,134.40, 781,277.38 and 311,486.06 is: 429,857.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,134.40 : 781,277.38 = 311,486.06 : x
  2. Step 2: Convert to fraction form
    566,134.40/781,277.38 = 311,486.06/x
  3. Step 3: Cross multiply
    566,134.40x = 781,277.38 × 311,486.06
  4. Step 4: Simplify right side
    566,134.40x = 243,357,008,178.22
  5. Step 5: Solve for x
    x = 243,357,008,178.22/566,134.40
  6. Step 6: Final answer
    x = 429,857.31

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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.