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Finding the Fourth Proportional to 508,618.77, 701,880.03 and 279,175.74

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Solution

The fourth proportional to 508,618.77, 701,880.03 and 279,175.74 is: 385,254.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,618.77 : 701,880.03 = 279,175.74 : x
  2. Step 2: Convert to fraction form
    508,618.77/701,880.03 = 279,175.74/x
  3. Step 3: Cross multiply
    508,618.77x = 701,880.03 × 279,175.74
  4. Step 4: Simplify right side
    508,618.77x = 195,947,876,766.47
  5. Step 5: Solve for x
    x = 195,947,876,766.47/508,618.77
  6. Step 6: Final answer
    x = 385,254.91

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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.