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Finding the Fourth Proportional to 662,131.52, 913,678.28 and 371,676.56

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Solution

The fourth proportional to 662,131.52, 913,678.28 and 371,676.56 is: 512,878.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,131.52 : 913,678.28 = 371,676.56 : x
  2. Step 2: Convert to fraction form
    662,131.52/913,678.28 = 371,676.56/x
  3. Step 3: Cross multiply
    662,131.52x = 913,678.28 × 371,676.56
  4. Step 4: Simplify right side
    662,131.52x = 339,592,800,057.12
  5. Step 5: Solve for x
    x = 339,592,800,057.12/662,131.52
  6. Step 6: Final answer
    x = 512,878.17

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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.