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Finding the Fourth Proportional to 566,072.88, 781,180.57 and 311,418.60

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Solution

The fourth proportional to 566,072.88, 781,180.57 and 311,418.60 is: 429,757.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,072.88 : 781,180.57 = 311,418.60 : x
  2. Step 2: Convert to fraction form
    566,072.88/781,180.57 = 311,418.60/x
  3. Step 3: Cross multiply
    566,072.88x = 781,180.57 × 311,418.60
  4. Step 4: Simplify right side
    566,072.88x = 243,274,159,456.60
  5. Step 5: Solve for x
    x = 243,274,159,456.60/566,072.88
  6. Step 6: Final answer
    x = 429,757.67

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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.