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Finding the Fourth Proportional to 508,860.04, 702,239.52 and 279,439.96

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Solution

The fourth proportional to 508,860.04, 702,239.52 and 279,439.96 is: 385,634.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,860.04 : 702,239.52 = 279,439.96 : x
  2. Step 2: Convert to fraction form
    508,860.04/702,239.52 = 279,439.96/x
  3. Step 3: Cross multiply
    508,860.04x = 702,239.52 × 279,439.96
  4. Step 4: Simplify right side
    508,860.04x = 196,233,783,379.22
  5. Step 5: Solve for x
    x = 196,233,783,379.22/508,860.04
  6. Step 6: Final answer
    x = 385,634.10

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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.