Home / 683,938.42-943,883.85-378,008.22

Finding the Fourth Proportional to 683,938.42, 943,883.85 and 378,008.22

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Solution

The fourth proportional to 683,938.42, 943,883.85 and 378,008.22 is: 521,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,938.42 : 943,883.85 = 378,008.22 : x
  2. Step 2: Convert to fraction form
    683,938.42/943,883.85 = 378,008.22/x
  3. Step 3: Cross multiply
    683,938.42x = 943,883.85 × 378,008.22
  4. Step 4: Simplify right side
    683,938.42x = 356,795,858,982.34
  5. Step 5: Solve for x
    x = 356,795,858,982.34/683,938.42
  6. Step 6: Final answer
    x = 521,678.34

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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.