Home / 801,321.21-1,105,823.40-438,767.53

Finding the Fourth Proportional to 801,321.21, 1,105,823.40 and 438,767.53

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Solution

The fourth proportional to 801,321.21, 1,105,823.40 and 438,767.53 is: 605,499.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,321.21 : 1,105,823.40 = 438,767.53 : x
  2. Step 2: Convert to fraction form
    801,321.21/1,105,823.40 = 438,767.53/x
  3. Step 3: Cross multiply
    801,321.21x = 1,105,823.40 × 438,767.53
  4. Step 4: Simplify right side
    801,321.21x = 485,199,401,834.20
  5. Step 5: Solve for x
    x = 485,199,401,834.20/801,321.21
  6. Step 6: Final answer
    x = 605,499.27

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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.