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Finding the Fourth Proportional to 605,658.72, 835,837.20 and 351,089.76

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Solution

The fourth proportional to 605,658.72, 835,837.20 and 351,089.76 is: 484,520.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,658.72 : 835,837.20 = 351,089.76 : x
  2. Step 2: Convert to fraction form
    605,658.72/835,837.20 = 351,089.76/x
  3. Step 3: Cross multiply
    605,658.72x = 835,837.20 × 351,089.76
  4. Step 4: Simplify right side
    605,658.72x = 293,453,881,947.07
  5. Step 5: Solve for x
    x = 293,453,881,947.07/605,658.72
  6. Step 6: Final answer
    x = 484,520.20

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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.