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Finding the Fourth Proportional to 661,646.84, 992,070.75 and 296,841.83

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Solution

The fourth proportional to 661,646.84, 992,070.75 and 296,841.83 is: 445,083.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,646.84 : 992,070.75 = 296,841.83 : x
  2. Step 2: Convert to fraction form
    661,646.84/992,070.75 = 296,841.83/x
  3. Step 3: Cross multiply
    661,646.84x = 992,070.75 × 296,841.83
  4. Step 4: Simplify right side
    661,646.84x = 294,488,096,919.47
  5. Step 5: Solve for x
    x = 294,488,096,919.47/661,646.84
  6. Step 6: Final answer
    x = 445,083.51

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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.