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Finding the Fourth Proportional to 566,069.80, 781,148.10 and 311,414.44

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Solution

The fourth proportional to 566,069.80, 781,148.10 and 311,414.44 is: 429,736.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,069.80 : 781,148.10 = 311,414.44 : x
  2. Step 2: Convert to fraction form
    566,069.80/781,148.10 = 311,414.44/x
  3. Step 3: Cross multiply
    566,069.80x = 781,148.10 × 311,414.44
  4. Step 4: Simplify right side
    566,069.80x = 243,260,798,118.56
  5. Step 5: Solve for x
    x = 243,260,798,118.56/566,069.80
  6. Step 6: Final answer
    x = 429,736.40

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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.