Home / 814,002.88-1,221,018.08-281,537.76

Finding the Fourth Proportional to 814,002.88, 1,221,018.08 and 281,537.76

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Solution

The fourth proportional to 814,002.88, 1,221,018.08 and 281,537.76 is: 422,311.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,002.88 : 1,221,018.08 = 281,537.76 : x
  2. Step 2: Convert to fraction form
    814,002.88/1,221,018.08 = 281,537.76/x
  3. Step 3: Cross multiply
    814,002.88x = 1,221,018.08 × 281,537.76
  4. Step 4: Simplify right side
    814,002.88x = 343,762,695,162.70
  5. Step 5: Solve for x
    x = 343,762,695,162.70/814,002.88
  6. Step 6: Final answer
    x = 422,311.40

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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.