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Finding the Fourth Proportional to 379,805.46, 524,117.79 and 207,717.54

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Solution

The fourth proportional to 379,805.46, 524,117.79 and 207,717.54 is: 286,642.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,805.46 : 524,117.79 = 207,717.54 : x
  2. Step 2: Convert to fraction form
    379,805.46/524,117.79 = 207,717.54/x
  3. Step 3: Cross multiply
    379,805.46x = 524,117.79 × 207,717.54
  4. Step 4: Simplify right side
    379,805.46x = 108,868,458,009.04
  5. Step 5: Solve for x
    x = 108,868,458,009.04/379,805.46
  6. Step 6: Final answer
    x = 286,642.69

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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.