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Finding the Fourth Proportional to 484,770, 669,034.44 and 283,734.48

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Solution

The fourth proportional to 484,770, 669,034.44 and 283,734.48 is: 391,583.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,770 : 669,034.44 = 283,734.48 : x
  2. Step 2: Convert to fraction form
    484,770/669,034.44 = 283,734.48/x
  3. Step 3: Cross multiply
    484,770x = 669,034.44 × 283,734.48
  4. Step 4: Simplify right side
    484,770x = 189,828,138,935.49
  5. Step 5: Solve for x
    x = 189,828,138,935.49/484,770
  6. Step 6: Final answer
    x = 391,583.92

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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.