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Finding the Fourth Proportional to 683,791.52, 943,585.10 and 377,865

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Solution

The fourth proportional to 683,791.52, 943,585.10 and 377,865 is: 521,427.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,791.52 : 943,585.10 = 377,865 : x
  2. Step 2: Convert to fraction form
    683,791.52/943,585.10 = 377,865/x
  3. Step 3: Cross multiply
    683,791.52x = 943,585.10 × 377,865
  4. Step 4: Simplify right side
    683,791.52x = 356,547,783,339.17
  5. Step 5: Solve for x
    x = 356,547,783,339.17/683,791.52
  6. Step 6: Final answer
    x = 521,427.62

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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.