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Finding the Fourth Proportional to 665,747.73, 918,902.75 and 410,952.51

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Solution

The fourth proportional to 665,747.73, 918,902.75 and 410,952.51 is: 567,219.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,747.73 : 918,902.75 = 410,952.51 : x
  2. Step 2: Convert to fraction form
    665,747.73/918,902.75 = 410,952.51/x
  3. Step 3: Cross multiply
    665,747.73x = 918,902.75 × 410,952.51
  4. Step 4: Simplify right side
    665,747.73x = 377,625,391,558.40
  5. Step 5: Solve for x
    x = 377,625,391,558.40/665,747.73
  6. Step 6: Final answer
    x = 567,219.95

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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.