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Finding the Fourth Proportional to 580,840.80, 871,390.80 and 454,869.60

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Solution

The fourth proportional to 580,840.80, 871,390.80 and 454,869.60 is: 682,405.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,840.80 : 871,390.80 = 454,869.60 : x
  2. Step 2: Convert to fraction form
    580,840.80/871,390.80 = 454,869.60/x
  3. Step 3: Cross multiply
    580,840.80x = 871,390.80 × 454,869.60
  4. Step 4: Simplify right side
    580,840.80x = 396,369,184,639.68
  5. Step 5: Solve for x
    x = 396,369,184,639.68/580,840.80
  6. Step 6: Final answer
    x = 682,405.89

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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.