Home / 909,990.58-1,365,248.19-278,997.46

Finding the Fourth Proportional to 909,990.58, 1,365,248.19 and 278,997.46

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Solution

The fourth proportional to 909,990.58, 1,365,248.19 and 278,997.46 is: 418,576.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,990.58 : 1,365,248.19 = 278,997.46 : x
  2. Step 2: Convert to fraction form
    909,990.58/1,365,248.19 = 278,997.46/x
  3. Step 3: Cross multiply
    909,990.58x = 1,365,248.19 × 278,997.46
  4. Step 4: Simplify right side
    909,990.58x = 380,900,777,279.60
  5. Step 5: Solve for x
    x = 380,900,777,279.60/909,990.58
  6. Step 6: Final answer
    x = 418,576.62

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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.