Home / 683,938.70-943,884.26-378,008.50

Finding the Fourth Proportional to 683,938.70, 943,884.26 and 378,008.50

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Solution

The fourth proportional to 683,938.70, 943,884.26 and 378,008.50 is: 521,678.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,938.70 : 943,884.26 = 378,008.50 : x
  2. Step 2: Convert to fraction form
    683,938.70/943,884.26 = 378,008.50/x
  3. Step 3: Cross multiply
    683,938.70x = 943,884.26 × 378,008.50
  4. Step 4: Simplify right side
    683,938.70x = 356,796,271,881.52
  5. Step 5: Solve for x
    x = 356,796,271,881.52/683,938.70
  6. Step 6: Final answer
    x = 521,678.73

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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.