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Finding the Fourth Proportional to 498,362.96, 687,696.53 and 277,583.35

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Solution

The fourth proportional to 498,362.96, 687,696.53 and 277,583.35 is: 383,040.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,362.96 : 687,696.53 = 277,583.35 : x
  2. Step 2: Convert to fraction form
    498,362.96/687,696.53 = 277,583.35/x
  3. Step 3: Cross multiply
    498,362.96x = 687,696.53 × 277,583.35
  4. Step 4: Simplify right side
    498,362.96x = 190,893,108,675.56
  5. Step 5: Solve for x
    x = 190,893,108,675.56/498,362.96
  6. Step 6: Final answer
    x = 383,040.32

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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.