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Finding the Fourth Proportional to 553,896.46, 764,376.15 and 299,246.86

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Solution

The fourth proportional to 553,896.46, 764,376.15 and 299,246.86 is: 412,960.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,896.46 : 764,376.15 = 299,246.86 : x
  2. Step 2: Convert to fraction form
    553,896.46/764,376.15 = 299,246.86/x
  3. Step 3: Cross multiply
    553,896.46x = 764,376.15 × 299,246.86
  4. Step 4: Simplify right side
    553,896.46x = 228,737,162,746.39
  5. Step 5: Solve for x
    x = 228,737,162,746.39/553,896.46
  6. Step 6: Final answer
    x = 412,960.15

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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.