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Finding the Fourth Proportional to 648,635.76, 972,905.64 and 227,915.76

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Solution

The fourth proportional to 648,635.76, 972,905.64 and 227,915.76 is: 341,856.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,635.76 : 972,905.64 = 227,915.76 : x
  2. Step 2: Convert to fraction form
    648,635.76/972,905.64 = 227,915.76/x
  3. Step 3: Cross multiply
    648,635.76x = 972,905.64 × 227,915.76
  4. Step 4: Simplify right side
    648,635.76x = 221,740,528,348.89
  5. Step 5: Solve for x
    x = 221,740,528,348.89/648,635.76
  6. Step 6: Final answer
    x = 341,856.77

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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.