Home / 715,191.31-1,072,548.22-288,616.96

Finding the Fourth Proportional to 715,191.31, 1,072,548.22 and 288,616.96

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Solution

The fourth proportional to 715,191.31, 1,072,548.22 and 288,616.96 is: 432,829.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,191.31 : 1,072,548.22 = 288,616.96 : x
  2. Step 2: Convert to fraction form
    715,191.31/1,072,548.22 = 288,616.96/x
  3. Step 3: Cross multiply
    715,191.31x = 1,072,548.22 × 288,616.96
  4. Step 4: Simplify right side
    715,191.31x = 309,555,606,709.81
  5. Step 5: Solve for x
    x = 309,555,606,709.81/715,191.31
  6. Step 6: Final answer
    x = 432,829.09

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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.