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Finding the Fourth Proportional to 566,181.44, 781,310.88 and 311,508.80

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Solution

The fourth proportional to 566,181.44, 781,310.88 and 311,508.80 is: 429,871.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,181.44 : 781,310.88 = 311,508.80 : x
  2. Step 2: Convert to fraction form
    566,181.44/781,310.88 = 311,508.80/x
  3. Step 3: Cross multiply
    566,181.44x = 781,310.88 × 311,508.80
  4. Step 4: Simplify right side
    566,181.44x = 243,385,214,655.74
  5. Step 5: Solve for x
    x = 243,385,214,655.74/566,181.44
  6. Step 6: Final answer
    x = 429,871.41

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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.