Home / 1,188,927.54-1,782,341.55-909,691.38

Finding the Fourth Proportional to 1,188,927.54, 1,782,341.55 and 909,691.38

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Solution

The fourth proportional to 1,188,927.54, 1,782,341.55 and 909,691.38 is: 1,363,733.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,927.54 : 1,782,341.55 = 909,691.38 : x
  2. Step 2: Convert to fraction form
    1,188,927.54/1,782,341.55 = 909,691.38/x
  3. Step 3: Cross multiply
    1,188,927.54x = 1,782,341.55 × 909,691.38
  4. Step 4: Simplify right side
    1,188,927.54x = 1,621,380,744,250.84
  5. Step 5: Solve for x
    x = 1,621,380,744,250.84/1,188,927.54
  6. Step 6: Final answer
    x = 1,363,733.86

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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.