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Finding the Fourth Proportional to 508,641.92, 701,900.80 and 279,193.60

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Solution

The fourth proportional to 508,641.92, 701,900.80 and 279,193.60 is: 385,273.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,641.92 : 701,900.80 = 279,193.60 : x
  2. Step 2: Convert to fraction form
    508,641.92/701,900.80 = 279,193.60/x
  3. Step 3: Cross multiply
    508,641.92x = 701,900.80 × 279,193.60
  4. Step 4: Simplify right side
    508,641.92x = 195,966,211,194.88
  5. Step 5: Solve for x
    x = 195,966,211,194.88/508,641.92
  6. Step 6: Final answer
    x = 385,273.42

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1.5x scale

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.