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Finding the Fourth Proportional to 702,222.69, 969,066.81 and 396,363.45

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Solution

The fourth proportional to 702,222.69, 969,066.81 and 396,363.45 is: 546,981.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,222.69 : 969,066.81 = 396,363.45 : x
  2. Step 2: Convert to fraction form
    702,222.69/969,066.81 = 396,363.45/x
  3. Step 3: Cross multiply
    702,222.69x = 969,066.81 × 396,363.45
  4. Step 4: Simplify right side
    702,222.69x = 384,102,664,092.10
  5. Step 5: Solve for x
    x = 384,102,664,092.10/702,222.69
  6. Step 6: Final answer
    x = 546,981.28

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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.