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Finding the Fourth Proportional to 508,600.71, 701,858.96 and 287,833.91

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Solution

The fourth proportional to 508,600.71, 701,858.96 and 287,833.91 is: 397,205.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,600.71 : 701,858.96 = 287,833.91 : x
  2. Step 2: Convert to fraction form
    508,600.71/701,858.96 = 287,833.91/x
  3. Step 3: Cross multiply
    508,600.71x = 701,858.96 × 287,833.91
  4. Step 4: Simplify right side
    508,600.71x = 202,018,808,725.33
  5. Step 5: Solve for x
    x = 202,018,808,725.33/508,600.71
  6. Step 6: Final answer
    x = 397,205.13

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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.