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Finding the Fourth Proportional to 552,818.19, 762,894.53 and 307,806.35

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Solution

The fourth proportional to 552,818.19, 762,894.53 and 307,806.35 is: 424,775.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,818.19 : 762,894.53 = 307,806.35 : x
  2. Step 2: Convert to fraction form
    552,818.19/762,894.53 = 307,806.35/x
  3. Step 3: Cross multiply
    552,818.19x = 762,894.53 × 307,806.35
  4. Step 4: Simplify right side
    552,818.19x = 234,823,782,086.25
  5. Step 5: Solve for x
    x = 234,823,782,086.25/552,818.19
  6. Step 6: Final answer
    x = 424,775.79

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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.