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Finding the Fourth Proportional to 702,611.76, 969,604.41 and 380,320.86

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Solution

The fourth proportional to 702,611.76, 969,604.41 and 380,320.86 is: 524,842.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,611.76 : 969,604.41 = 380,320.86 : x
  2. Step 2: Convert to fraction form
    702,611.76/969,604.41 = 380,320.86/x
  3. Step 3: Cross multiply
    702,611.76x = 969,604.41 × 380,320.86
  4. Step 4: Simplify right side
    702,611.76x = 368,760,783,070.99
  5. Step 5: Solve for x
    x = 368,760,783,070.99/702,611.76
  6. Step 6: Final answer
    x = 524,842.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.