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Finding the Fourth Proportional to 677,902.39, 935,473.84 and 371,971.16

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Solution

The fourth proportional to 677,902.39, 935,473.84 and 371,971.16 is: 513,302.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,902.39 : 935,473.84 = 371,971.16 : x
  2. Step 2: Convert to fraction form
    677,902.39/935,473.84 = 371,971.16/x
  3. Step 3: Cross multiply
    677,902.39x = 935,473.84 × 371,971.16
  4. Step 4: Simplify right side
    677,902.39x = 347,969,284,737.09
  5. Step 5: Solve for x
    x = 347,969,284,737.09/677,902.39
  6. Step 6: Final answer
    x = 513,302.94

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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.