Home / 946,731.75-1,420,110.20-315,645.77

Finding the Fourth Proportional to 946,731.75, 1,420,110.20 and 315,645.77

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Solution

The fourth proportional to 946,731.75, 1,420,110.20 and 315,645.77 is: 473,472.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,731.75 : 1,420,110.20 = 315,645.77 : x
  2. Step 2: Convert to fraction form
    946,731.75/1,420,110.20 = 315,645.77/x
  3. Step 3: Cross multiply
    946,731.75x = 1,420,110.20 × 315,645.77
  4. Step 4: Simplify right side
    946,731.75x = 448,251,777,563.85
  5. Step 5: Solve for x
    x = 448,251,777,563.85/946,731.75
  6. Step 6: Final answer
    x = 473,472.85

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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.