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Finding the Fourth Proportional to 702,103.54, 968,899.95 and 379,812.84

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Solution

The fourth proportional to 702,103.54, 968,899.95 and 379,812.84 is: 524,140.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,103.54 : 968,899.95 = 379,812.84 : x
  2. Step 2: Convert to fraction form
    702,103.54/968,899.95 = 379,812.84/x
  3. Step 3: Cross multiply
    702,103.54x = 968,899.95 × 379,812.84
  4. Step 4: Simplify right side
    702,103.54x = 368,000,641,685.36
  5. Step 5: Solve for x
    x = 368,000,641,685.36/702,103.54
  6. Step 6: Final answer
    x = 524,140.13

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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.