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Finding the Fourth Proportional to 661,684.74, 992,625.52 and 306,734.64

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Solution

The fourth proportional to 661,684.74, 992,625.52 and 306,734.64 is: 460,147.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,684.74 : 992,625.52 = 306,734.64 : x
  2. Step 2: Convert to fraction form
    661,684.74/992,625.52 = 306,734.64/x
  3. Step 3: Cross multiply
    661,684.74x = 992,625.52 × 306,734.64
  4. Step 4: Simplify right side
    661,684.74x = 304,472,631,532.01
  5. Step 5: Solve for x
    x = 304,472,631,532.01/661,684.74
  6. Step 6: Final answer
    x = 460,147.58

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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.