Home / 789,686.20-1,184,455.86-221,118.76

Finding the Fourth Proportional to 789,686.20, 1,184,455.86 and 221,118.76

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Solution

The fourth proportional to 789,686.20, 1,184,455.86 and 221,118.76 is: 331,657.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,686.20 : 1,184,455.86 = 221,118.76 : x
  2. Step 2: Convert to fraction form
    789,686.20/1,184,455.86 = 221,118.76/x
  3. Step 3: Cross multiply
    789,686.20x = 1,184,455.86 × 221,118.76
  4. Step 4: Simplify right side
    789,686.20x = 261,905,411,037.93
  5. Step 5: Solve for x
    x = 261,905,411,037.93/789,686.20
  6. Step 6: Final answer
    x = 331,657.58

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Double scale
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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.