Home / 566,076.78-781,184.79-311,427.36

Finding the Fourth Proportional to 566,076.78, 781,184.79 and 311,427.36

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Solution

The fourth proportional to 566,076.78, 781,184.79 and 311,427.36 is: 429,769.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,076.78 : 781,184.79 = 311,427.36 : x
  2. Step 2: Convert to fraction form
    566,076.78/781,184.79 = 311,427.36/x
  3. Step 3: Cross multiply
    566,076.78x = 781,184.79 × 311,427.36
  4. Step 4: Simplify right side
    566,076.78x = 243,282,316,821.85
  5. Step 5: Solve for x
    x = 243,282,316,821.85/566,076.78
  6. Step 6: Final answer
    x = 429,769.12

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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.