Home / 758,629.18-1,138,110.23-285,314.59

Finding the Fourth Proportional to 758,629.18, 1,138,110.23 and 285,314.59

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Solution

The fourth proportional to 758,629.18, 1,138,110.23 and 285,314.59 is: 428,034.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,629.18 : 1,138,110.23 = 285,314.59 : x
  2. Step 2: Convert to fraction form
    758,629.18/1,138,110.23 = 285,314.59/x
  3. Step 3: Cross multiply
    758,629.18x = 1,138,110.23 × 285,314.59
  4. Step 4: Simplify right side
    758,629.18x = 324,719,453,647.26
  5. Step 5: Solve for x
    x = 324,719,453,647.26/758,629.18
  6. Step 6: Final answer
    x = 428,034.49

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1.5x scale

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.