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Finding the Fourth Proportional to 587,786.20, 880,901.70 and 520,912.60

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Solution

The fourth proportional to 587,786.20, 880,901.70 and 520,912.60 is: 780,679.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,786.20 : 880,901.70 = 520,912.60 : x
  2. Step 2: Convert to fraction form
    587,786.20/880,901.70 = 520,912.60/x
  3. Step 3: Cross multiply
    587,786.20x = 880,901.70 × 520,912.60
  4. Step 4: Simplify right side
    587,786.20x = 458,872,794,891.42
  5. Step 5: Solve for x
    x = 458,872,794,891.42/587,786.20
  6. Step 6: Final answer
    x = 780,679.77

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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.