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Finding the Fourth Proportional to 702,096.78, 968,890.64 and 379,806.09

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Solution

The fourth proportional to 702,096.78, 968,890.64 and 379,806.09 is: 524,130.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,096.78 : 968,890.64 = 379,806.09 : x
  2. Step 2: Convert to fraction form
    702,096.78/968,890.64 = 379,806.09/x
  3. Step 3: Cross multiply
    702,096.78x = 968,890.64 × 379,806.09
  4. Step 4: Simplify right side
    702,096.78x = 367,990,565,616.00
  5. Step 5: Solve for x
    x = 367,990,565,616.00/702,096.78
  6. Step 6: Final answer
    x = 524,130.83

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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.