Home / 566,076.75-781,185.92-311,422.47

Finding the Fourth Proportional to 566,076.75, 781,185.92 and 311,422.47

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Solution

The fourth proportional to 566,076.75, 781,185.92 and 311,422.47 is: 429,763.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,076.75 : 781,185.92 = 311,422.47 : x
  2. Step 2: Convert to fraction form
    566,076.75/781,185.92 = 311,422.47/x
  3. Step 3: Cross multiply
    566,076.75x = 781,185.92 × 311,422.47
  4. Step 4: Simplify right side
    566,076.75x = 243,278,847,178.51
  5. Step 5: Solve for x
    x = 243,278,847,178.51/566,076.75
  6. Step 6: Final answer
    x = 429,763.01

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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.