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Finding the Fourth Proportional to 587,738.70, 880,830.45 and 520,865.10

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Solution

The fourth proportional to 587,738.70, 880,830.45 and 520,865.10 is: 780,608.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,738.70 : 880,830.45 = 520,865.10 : x
  2. Step 2: Convert to fraction form
    587,738.70/880,830.45 = 520,865.10/x
  3. Step 3: Cross multiply
    587,738.70x = 880,830.45 × 520,865.10
  4. Step 4: Simplify right side
    587,738.70x = 458,793,840,422.30
  5. Step 5: Solve for x
    x = 458,793,840,422.30/587,738.70
  6. Step 6: Final answer
    x = 780,608.53

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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.