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Finding the Fourth Proportional to 569,213.68, 785,531.13 and 311,104.96

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Solution

The fourth proportional to 569,213.68, 785,531.13 and 311,104.96 is: 429,333.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,213.68 : 785,531.13 = 311,104.96 : x
  2. Step 2: Convert to fraction form
    569,213.68/785,531.13 = 311,104.96/x
  3. Step 3: Cross multiply
    569,213.68x = 785,531.13 × 311,104.96
  4. Step 4: Simplify right side
    569,213.68x = 244,382,630,777.41
  5. Step 5: Solve for x
    x = 244,382,630,777.41/569,213.68
  6. Step 6: Final answer
    x = 429,333.73

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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.