Home / 566,134.90-781,278.06-311,486.56

Finding the Fourth Proportional to 566,134.90, 781,278.06 and 311,486.56

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Solution

The fourth proportional to 566,134.90, 781,278.06 and 311,486.56 is: 429,858.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,134.90 : 781,278.06 = 311,486.56 : x
  2. Step 2: Convert to fraction form
    566,134.90/781,278.06 = 311,486.56/x
  3. Step 3: Cross multiply
    566,134.90x = 781,278.06 × 311,486.56
  4. Step 4: Simplify right side
    566,134.90x = 243,357,615,312.87
  5. Step 5: Solve for x
    x = 243,357,615,312.87/566,134.90
  6. Step 6: Final answer
    x = 429,858.00

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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.