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Finding the Fourth Proportional to 671,351.17, 926,489.07 and 365,412.78

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Solution

The fourth proportional to 671,351.17, 926,489.07 and 365,412.78 is: 504,282.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,351.17 : 926,489.07 = 365,412.78 : x
  2. Step 2: Convert to fraction form
    671,351.17/926,489.07 = 365,412.78/x
  3. Step 3: Cross multiply
    671,351.17x = 926,489.07 × 365,412.78
  4. Step 4: Simplify right side
    671,351.17x = 338,550,946,708.32
  5. Step 5: Solve for x
    x = 338,550,946,708.32/671,351.17
  6. Step 6: Final answer
    x = 504,282.95

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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.