Home / 718,191.38-1,077,285.27-212,791.70

Finding the Fourth Proportional to 718,191.38, 1,077,285.27 and 212,791.70

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Solution

The fourth proportional to 718,191.38, 1,077,285.27 and 212,791.70 is: 319,187.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,191.38 : 1,077,285.27 = 212,791.70 : x
  2. Step 2: Convert to fraction form
    718,191.38/1,077,285.27 = 212,791.70/x
  3. Step 3: Cross multiply
    718,191.38x = 1,077,285.27 × 212,791.70
  4. Step 4: Simplify right side
    718,191.38x = 229,237,363,988.26
  5. Step 5: Solve for x
    x = 229,237,363,988.26/718,191.38
  6. Step 6: Final answer
    x = 319,187.02

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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.