Home / 579,548.42-869,142.60-279,842.66

Finding the Fourth Proportional to 579,548.42, 869,142.60 and 279,842.66

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Solution

The fourth proportional to 579,548.42, 869,142.60 and 279,842.66 is: 419,677.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,548.42 : 869,142.60 = 279,842.66 : x
  2. Step 2: Convert to fraction form
    579,548.42/869,142.60 = 279,842.66/x
  3. Step 3: Cross multiply
    579,548.42x = 869,142.60 × 279,842.66
  4. Step 4: Simplify right side
    579,548.42x = 243,223,177,103.32
  5. Step 5: Solve for x
    x = 243,223,177,103.32/579,548.42
  6. Step 6: Final answer
    x = 419,677.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.