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Finding the Fourth Proportional to 661,613.07, 992,020.04 and 296,807.88

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Solution

The fourth proportional to 661,613.07, 992,020.04 and 296,807.88 is: 445,032.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,613.07 : 992,020.04 = 296,807.88 : x
  2. Step 2: Convert to fraction form
    661,613.07/992,020.04 = 296,807.88/x
  3. Step 3: Cross multiply
    661,613.07x = 992,020.04 × 296,807.88
  4. Step 4: Simplify right side
    661,613.07x = 294,439,360,029.82
  5. Step 5: Solve for x
    x = 294,439,360,029.82/661,613.07
  6. Step 6: Final answer
    x = 445,032.56

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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.