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Finding the Fourth Proportional to 508,598.69, 701,875.10 and 279,177.43

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Solution

The fourth proportional to 508,598.69, 701,875.10 and 279,177.43 is: 385,269.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,598.69 : 701,875.10 = 279,177.43 : x
  2. Step 2: Convert to fraction form
    508,598.69/701,875.10 = 279,177.43/x
  3. Step 3: Cross multiply
    508,598.69x = 701,875.10 × 279,177.43
  4. Step 4: Simplify right side
    508,598.69x = 195,947,683,448.42
  5. Step 5: Solve for x
    x = 195,947,683,448.42/508,598.69
  6. Step 6: Final answer
    x = 385,269.73

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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.