Home / 668,856.80-1,003,613.24-313,899.68

Finding the Fourth Proportional to 668,856.80, 1,003,613.24 and 313,899.68

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Solution

The fourth proportional to 668,856.80, 1,003,613.24 and 313,899.68 is: 471,003.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,856.80 : 1,003,613.24 = 313,899.68 : x
  2. Step 2: Convert to fraction form
    668,856.80/1,003,613.24 = 313,899.68/x
  3. Step 3: Cross multiply
    668,856.80x = 1,003,613.24 × 313,899.68
  4. Step 4: Simplify right side
    668,856.80x = 315,033,874,879.76
  5. Step 5: Solve for x
    x = 315,033,874,879.76/668,856.80
  6. Step 6: Final answer
    x = 471,003.47

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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.