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Finding the Fourth Proportional to 484,713, 668,955.78 and 283,677.48

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Solution

The fourth proportional to 484,713, 668,955.78 and 283,677.48 is: 391,505.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,713 : 668,955.78 = 283,677.48 : x
  2. Step 2: Convert to fraction form
    484,713/668,955.78 = 283,677.48/x
  3. Step 3: Cross multiply
    484,713x = 668,955.78 × 283,677.48
  4. Step 4: Simplify right side
    484,713x = 189,767,689,901.83
  5. Step 5: Solve for x
    x = 189,767,689,901.83/484,713
  6. Step 6: Final answer
    x = 391,505.26

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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.