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Finding the Fourth Proportional to 527,285.76, 790,593.44 and 447,351.28

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Solution

The fourth proportional to 527,285.76, 790,593.44 and 447,351.28 is: 670,742.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,285.76 : 790,593.44 = 447,351.28 : x
  2. Step 2: Convert to fraction form
    527,285.76/790,593.44 = 447,351.28/x
  3. Step 3: Cross multiply
    527,285.76x = 790,593.44 × 447,351.28
  4. Step 4: Simplify right side
    527,285.76x = 353,672,987,343.60
  5. Step 5: Solve for x
    x = 353,672,987,343.60/527,285.76
  6. Step 6: Final answer
    x = 670,742.54

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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.