Home / 909,876.08-1,364,764.89-278,791.72

Finding the Fourth Proportional to 909,876.08, 1,364,764.89 and 278,791.72

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Solution

The fourth proportional to 909,876.08, 1,364,764.89 and 278,791.72 is: 418,172.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,876.08 : 1,364,764.89 = 278,791.72 : x
  2. Step 2: Convert to fraction form
    909,876.08/1,364,764.89 = 278,791.72/x
  3. Step 3: Cross multiply
    909,876.08x = 1,364,764.89 × 278,791.72
  4. Step 4: Simplify right side
    909,876.08x = 380,485,151,078.71
  5. Step 5: Solve for x
    x = 380,485,151,078.71/909,876.08
  6. Step 6: Final answer
    x = 418,172.50

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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.