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Finding the Fourth Proportional to 619,925.86, 855,526.10 and 344,284.97

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Solution

The fourth proportional to 619,925.86, 855,526.10 and 344,284.97 is: 475,129.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,925.86 : 855,526.10 = 344,284.97 : x
  2. Step 2: Convert to fraction form
    619,925.86/855,526.10 = 344,284.97/x
  3. Step 3: Cross multiply
    619,925.86x = 855,526.10 × 344,284.97
  4. Step 4: Simplify right side
    619,925.86x = 294,544,775,951.29
  5. Step 5: Solve for x
    x = 294,544,775,951.29/619,925.86
  6. Step 6: Final answer
    x = 475,129.04

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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.