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Finding the Fourth Proportional to 472,701.75, 652,401.41 and 279,130.17

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Solution

The fourth proportional to 472,701.75, 652,401.41 and 279,130.17 is: 385,242.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,701.75 : 652,401.41 = 279,130.17 : x
  2. Step 2: Convert to fraction form
    472,701.75/652,401.41 = 279,130.17/x
  3. Step 3: Cross multiply
    472,701.75x = 652,401.41 × 279,130.17
  4. Step 4: Simplify right side
    472,701.75x = 182,104,916,481.54
  5. Step 5: Solve for x
    x = 182,104,916,481.54/472,701.75
  6. Step 6: Final answer
    x = 385,242.74

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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.