Home / 902,421.66-1,245,321.91-494,514.57

Finding the Fourth Proportional to 902,421.66, 1,245,321.91 and 494,514.57

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Solution

The fourth proportional to 902,421.66, 1,245,321.91 and 494,514.57 is: 682,419.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,421.66 : 1,245,321.91 = 494,514.57 : x
  2. Step 2: Convert to fraction form
    902,421.66/1,245,321.91 = 494,514.57/x
  3. Step 3: Cross multiply
    902,421.66x = 1,245,321.91 × 494,514.57
  4. Step 4: Simplify right side
    902,421.66x = 615,829,828,835.23
  5. Step 5: Solve for x
    x = 615,829,828,835.23/902,421.66
  6. Step 6: Final answer
    x = 682,419.16

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1.5x scale

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.