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Finding the Fourth Proportional to 702,245.79, 969,099.17 and 379,955.88

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Solution

The fourth proportional to 702,245.79, 969,099.17 and 379,955.88 is: 524,339.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,245.79 : 969,099.17 = 379,955.88 : x
  2. Step 2: Convert to fraction form
    702,245.79/969,099.17 = 379,955.88/x
  3. Step 3: Cross multiply
    702,245.79x = 969,099.17 × 379,955.88
  4. Step 4: Simplify right side
    702,245.79x = 368,214,926,044.84
  5. Step 5: Solve for x
    x = 368,214,926,044.84/702,245.79
  6. Step 6: Final answer
    x = 524,339.10

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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.