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Finding the Fourth Proportional to 661,657.98, 992,585.39 and 306,707.88

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Solution

The fourth proportional to 661,657.98, 992,585.39 and 306,707.88 is: 460,107.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,657.98 : 992,585.39 = 306,707.88 : x
  2. Step 2: Convert to fraction form
    661,657.98/992,585.39 = 306,707.88/x
  3. Step 3: Cross multiply
    661,657.98x = 992,585.39 × 306,707.88
  4. Step 4: Simplify right side
    661,657.98x = 304,433,760,685.87
  5. Step 5: Solve for x
    x = 304,433,760,685.87/661,657.98
  6. Step 6: Final answer
    x = 460,107.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.