Home / 915,690.92-1,263,629.52-507,791.72

Finding the Fourth Proportional to 915,690.92, 1,263,629.52 and 507,791.72

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Solution

The fourth proportional to 915,690.92, 1,263,629.52 and 507,791.72 is: 700,739.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,690.92 : 1,263,629.52 = 507,791.72 : x
  2. Step 2: Convert to fraction form
    915,690.92/1,263,629.52 = 507,791.72/x
  3. Step 3: Cross multiply
    915,690.92x = 1,263,629.52 × 507,791.72
  4. Step 4: Simplify right side
    915,690.92x = 641,660,607,403.57
  5. Step 5: Solve for x
    x = 641,660,607,403.57/915,690.92
  6. Step 6: Final answer
    x = 700,739.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.