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Finding the Fourth Proportional to 619,767.59, 855,280.92 and 344,125.95

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Solution

The fourth proportional to 619,767.59, 855,280.92 and 344,125.95 is: 474,894.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,767.59 : 855,280.92 = 344,125.95 : x
  2. Step 2: Convert to fraction form
    619,767.59/855,280.92 = 344,125.95/x
  3. Step 3: Cross multiply
    619,767.59x = 855,280.92 × 344,125.95
  4. Step 4: Simplify right side
    619,767.59x = 294,324,359,111.87
  5. Step 5: Solve for x
    x = 294,324,359,111.87/619,767.59
  6. Step 6: Final answer
    x = 474,894.72

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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.