Home / 693,790.70-1,040,669.85-319,813.70

Finding the Fourth Proportional to 693,790.70, 1,040,669.85 and 319,813.70

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Solution

The fourth proportional to 693,790.70, 1,040,669.85 and 319,813.70 is: 479,713.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,790.70 : 1,040,669.85 = 319,813.70 : x
  2. Step 2: Convert to fraction form
    693,790.70/1,040,669.85 = 319,813.70/x
  3. Step 3: Cross multiply
    693,790.70x = 1,040,669.85 × 319,813.70
  4. Step 4: Simplify right side
    693,790.70x = 332,820,476,609.32
  5. Step 5: Solve for x
    x = 332,820,476,609.32/693,790.70
  6. Step 6: Final answer
    x = 479,713.08

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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.