Home / 878,381.12-1,316,975.52-279,162.56

Finding the Fourth Proportional to 878,381.12, 1,316,975.52 and 279,162.56

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Solution

The fourth proportional to 878,381.12, 1,316,975.52 and 279,162.56 is: 418,554.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,381.12 : 1,316,975.52 = 279,162.56 : x
  2. Step 2: Convert to fraction form
    878,381.12/1,316,975.52 = 279,162.56/x
  3. Step 3: Cross multiply
    878,381.12x = 1,316,975.52 × 279,162.56
  4. Step 4: Simplify right side
    878,381.12x = 367,650,257,620.53
  5. Step 5: Solve for x
    x = 367,650,257,620.53/878,381.12
  6. Step 6: Final answer
    x = 418,554.37

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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.