Home / 909,933.34-1,365,099.69-278,894.62

Finding the Fourth Proportional to 909,933.34, 1,365,099.69 and 278,894.62

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Solution

The fourth proportional to 909,933.34, 1,365,099.69 and 278,894.62 is: 418,403.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,933.34 : 1,365,099.69 = 278,894.62 : x
  2. Step 2: Convert to fraction form
    909,933.34/1,365,099.69 = 278,894.62/x
  3. Step 3: Cross multiply
    909,933.34x = 1,365,099.69 × 278,894.62
  4. Step 4: Simplify right side
    909,933.34x = 380,718,959,304.67
  5. Step 5: Solve for x
    x = 380,718,959,304.67/909,933.34
  6. Step 6: Final answer
    x = 418,403.13

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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.