Home / 905,738.81-1,357,402.61-479,183.60

Finding the Fourth Proportional to 905,738.81, 1,357,402.61 and 479,183.60

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Solution

The fourth proportional to 905,738.81, 1,357,402.61 and 479,183.60 is: 718,137.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,738.81 : 1,357,402.61 = 479,183.60 : x
  2. Step 2: Convert to fraction form
    905,738.81/1,357,402.61 = 479,183.60/x
  3. Step 3: Cross multiply
    905,738.81x = 1,357,402.61 × 479,183.60
  4. Step 4: Simplify right side
    905,738.81x = 650,445,063,569.86
  5. Step 5: Solve for x
    x = 650,445,063,569.86/905,738.81
  6. Step 6: Final answer
    x = 718,137.56

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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.