Home / 789,645.41-1,184,421.35-221,013.90

Finding the Fourth Proportional to 789,645.41, 1,184,421.35 and 221,013.90

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Solution

The fourth proportional to 789,645.41, 1,184,421.35 and 221,013.90 is: 331,507.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,645.41 : 1,184,421.35 = 221,013.90 : x
  2. Step 2: Convert to fraction form
    789,645.41/1,184,421.35 = 221,013.90/x
  3. Step 3: Cross multiply
    789,645.41x = 1,184,421.35 × 221,013.90
  4. Step 4: Simplify right side
    789,645.41x = 261,773,581,806.77
  5. Step 5: Solve for x
    x = 261,773,581,806.77/789,645.41
  6. Step 6: Final answer
    x = 331,507.76

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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.