Home / 669,140.31-923,382.12-363,209.79

Finding the Fourth Proportional to 669,140.31, 923,382.12 and 363,209.79

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Solution

The fourth proportional to 669,140.31, 923,382.12 and 363,209.79 is: 501,212.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,140.31 : 923,382.12 = 363,209.79 : x
  2. Step 2: Convert to fraction form
    669,140.31/923,382.12 = 363,209.79/x
  3. Step 3: Cross multiply
    669,140.31x = 923,382.12 × 363,209.79
  4. Step 4: Simplify right side
    669,140.31x = 335,381,425,894.96
  5. Step 5: Solve for x
    x = 335,381,425,894.96/669,140.31
  6. Step 6: Final answer
    x = 501,212.41

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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.