Home / 879,147.22-1,317,816.38-399,708.52

Finding the Fourth Proportional to 879,147.22, 1,317,816.38 and 399,708.52

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Solution

The fourth proportional to 879,147.22, 1,317,816.38 and 399,708.52 is: 599,151.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,147.22 : 1,317,816.38 = 399,708.52 : x
  2. Step 2: Convert to fraction form
    879,147.22/1,317,816.38 = 399,708.52/x
  3. Step 3: Cross multiply
    879,147.22x = 1,317,816.38 × 399,708.52
  4. Step 4: Simplify right side
    879,147.22x = 526,742,438,874.83
  5. Step 5: Solve for x
    x = 526,742,438,874.83/879,147.22
  6. Step 6: Final answer
    x = 599,151.57

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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.