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Finding the Fourth Proportional to 552,356.29, 762,244.45 and 310,638.79

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Solution

The fourth proportional to 552,356.29, 762,244.45 and 310,638.79 is: 428,677.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,356.29 : 762,244.45 = 310,638.79 : x
  2. Step 2: Convert to fraction form
    552,356.29/762,244.45 = 310,638.79/x
  3. Step 3: Cross multiply
    552,356.29x = 762,244.45 × 310,638.79
  4. Step 4: Simplify right side
    552,356.29x = 236,782,693,632.22
  5. Step 5: Solve for x
    x = 236,782,693,632.22/552,356.29
  6. Step 6: Final answer
    x = 428,677.46

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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.