Home / 683,939.10-943,884.82-378,008.90

Finding the Fourth Proportional to 683,939.10, 943,884.82 and 378,008.90

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Solution

The fourth proportional to 683,939.10, 943,884.82 and 378,008.90 is: 521,679.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,939.10 : 943,884.82 = 378,008.90 : x
  2. Step 2: Convert to fraction form
    683,939.10/943,884.82 = 378,008.90/x
  3. Step 3: Cross multiply
    683,939.10x = 943,884.82 × 378,008.90
  4. Step 4: Simplify right side
    683,939.10x = 356,796,862,534.90
  5. Step 5: Solve for x
    x = 356,796,862,534.90/683,939.10
  6. Step 6: Final answer
    x = 521,679.29

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1.5x scale

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.