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Finding the Fourth Proportional to 552,436.07, 762,300.09 and 310,713.48

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Solution

The fourth proportional to 552,436.07, 762,300.09 and 310,713.48 is: 428,749.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,436.07 : 762,300.09 = 310,713.48 : x
  2. Step 2: Convert to fraction form
    552,436.07/762,300.09 = 310,713.48/x
  3. Step 3: Cross multiply
    552,436.07x = 762,300.09 × 310,713.48
  4. Step 4: Simplify right side
    552,436.07x = 236,856,913,768.21
  5. Step 5: Solve for x
    x = 236,856,913,768.21/552,436.07
  6. Step 6: Final answer
    x = 428,749.91

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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.