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Finding the Fourth Proportional to 552,370.32, 762,263.78 and 310,652.80

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Solution

The fourth proportional to 552,370.32, 762,263.78 and 310,652.80 is: 428,696.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,370.32 : 762,263.78 = 310,652.80 : x
  2. Step 2: Convert to fraction form
    552,370.32/762,263.78 = 310,652.80/x
  3. Step 3: Cross multiply
    552,370.32x = 762,263.78 × 310,652.80
  4. Step 4: Simplify right side
    552,370.32x = 236,799,377,595.58
  5. Step 5: Solve for x
    x = 236,799,377,595.58/552,370.32
  6. Step 6: Final answer
    x = 428,696.78

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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.