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Finding the Fourth Proportional to 702,154.96, 968,972.52 and 379,865.32

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Solution

The fourth proportional to 702,154.96, 968,972.52 and 379,865.32 is: 524,213.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,154.96 : 968,972.52 = 379,865.32 : x
  2. Step 2: Convert to fraction form
    702,154.96/968,972.52 = 379,865.32/x
  3. Step 3: Cross multiply
    702,154.96x = 968,972.52 × 379,865.32
  4. Step 4: Simplify right side
    702,154.96x = 368,079,056,381.01
  5. Step 5: Solve for x
    x = 368,079,056,381.01/702,154.96
  6. Step 6: Final answer
    x = 524,213.42

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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.