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Finding the Fourth Proportional to 552,349.29, 762,234.78 and 310,631.79

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Solution

The fourth proportional to 552,349.29, 762,234.78 and 310,631.79 is: 428,667.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,349.29 : 762,234.78 = 310,631.79 : x
  2. Step 2: Convert to fraction form
    552,349.29/762,234.78 = 310,631.79/x
  3. Step 3: Cross multiply
    552,349.29x = 762,234.78 × 310,631.79
  4. Step 4: Simplify right side
    552,349.29x = 236,774,354,111.66
  5. Step 5: Solve for x
    x = 236,774,354,111.66/552,349.29
  6. Step 6: Final answer
    x = 428,667.80

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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.