Home / 670,913.05-1,005,637.65-329,591.38

Finding the Fourth Proportional to 670,913.05, 1,005,637.65 and 329,591.38

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Solution

The fourth proportional to 670,913.05, 1,005,637.65 and 329,591.38 is: 494,027.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,913.05 : 1,005,637.65 = 329,591.38 : x
  2. Step 2: Convert to fraction form
    670,913.05/1,005,637.65 = 329,591.38/x
  3. Step 3: Cross multiply
    670,913.05x = 1,005,637.65 × 329,591.38
  4. Step 4: Simplify right side
    670,913.05x = 331,449,501,759.89
  5. Step 5: Solve for x
    x = 331,449,501,759.89/670,913.05
  6. Step 6: Final answer
    x = 494,027.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.