Home / 481,291.85-664,294.29-320,153.69

Finding the Fourth Proportional to 481,291.85, 664,294.29 and 320,153.69

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Solution

The fourth proportional to 481,291.85, 664,294.29 and 320,153.69 is: 441,886.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,291.85 : 664,294.29 = 320,153.69 : x
  2. Step 2: Convert to fraction form
    481,291.85/664,294.29 = 320,153.69/x
  3. Step 3: Cross multiply
    481,291.85x = 664,294.29 × 320,153.69
  4. Step 4: Simplify right side
    481,291.85x = 212,676,268,189.43
  5. Step 5: Solve for x
    x = 212,676,268,189.43/481,291.85
  6. Step 6: Final answer
    x = 441,886.29

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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.