Home / 814,061.72-1,221,278.60-281,582.28

Finding the Fourth Proportional to 814,061.72, 1,221,278.60 and 281,582.28

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Solution

The fourth proportional to 814,061.72, 1,221,278.60 and 281,582.28 is: 422,437.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,061.72 : 1,221,278.60 = 281,582.28 : x
  2. Step 2: Convert to fraction form
    814,061.72/1,221,278.60 = 281,582.28/x
  3. Step 3: Cross multiply
    814,061.72x = 1,221,278.60 × 281,582.28
  4. Step 4: Simplify right side
    814,061.72x = 343,890,412,703.21
  5. Step 5: Solve for x
    x = 343,890,412,703.21/814,061.72
  6. Step 6: Final answer
    x = 422,437.76

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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.