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Finding the Fourth Proportional to 486,792.93, 671,772.55 and 268,995.54

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Solution

The fourth proportional to 486,792.93, 671,772.55 and 268,995.54 is: 371,212.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,792.93 : 671,772.55 = 268,995.54 : x
  2. Step 2: Convert to fraction form
    486,792.93/671,772.55 = 268,995.54/x
  3. Step 3: Cross multiply
    486,792.93x = 671,772.55 × 268,995.54
  4. Step 4: Simplify right side
    486,792.93x = 180,703,819,844.43
  5. Step 5: Solve for x
    x = 180,703,819,844.43/486,792.93
  6. Step 6: Final answer
    x = 371,212.91

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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.