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Finding the Fourth Proportional to 587,740.20, 880,832.70 and 520,866.60

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Solution

The fourth proportional to 587,740.20, 880,832.70 and 520,866.60 is: 780,610.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,740.20 : 880,832.70 = 520,866.60 : x
  2. Step 2: Convert to fraction form
    587,740.20/880,832.70 = 520,866.60/x
  3. Step 3: Cross multiply
    587,740.20x = 880,832.70 × 520,866.60
  4. Step 4: Simplify right side
    587,740.20x = 458,796,333,617.82
  5. Step 5: Solve for x
    x = 458,796,333,617.82/587,740.20
  6. Step 6: Final answer
    x = 780,610.78

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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.