Home / 674,450.89-1,012,175.24-319,465.69

Finding the Fourth Proportional to 674,450.89, 1,012,175.24 and 319,465.69

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Solution

The fourth proportional to 674,450.89, 1,012,175.24 and 319,465.69 is: 479,434.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,450.89 : 1,012,175.24 = 319,465.69 : x
  2. Step 2: Convert to fraction form
    674,450.89/1,012,175.24 = 319,465.69/x
  3. Step 3: Cross multiply
    674,450.89x = 1,012,175.24 × 319,465.69
  4. Step 4: Simplify right side
    674,450.89x = 323,355,257,319.75
  5. Step 5: Solve for x
    x = 323,355,257,319.75/674,450.89
  6. Step 6: Final answer
    x = 479,434.85

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1.5x scale

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.