Home / 814,731.13-1,222,096.70-434,499.90

Finding the Fourth Proportional to 814,731.13, 1,222,096.70 and 434,499.90

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Solution

The fourth proportional to 814,731.13, 1,222,096.70 and 434,499.90 is: 651,749.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,731.13 : 1,222,096.70 = 434,499.90 : x
  2. Step 2: Convert to fraction form
    814,731.13/1,222,096.70 = 434,499.90/x
  3. Step 3: Cross multiply
    814,731.13x = 1,222,096.70 × 434,499.90
  4. Step 4: Simplify right side
    814,731.13x = 531,000,887,999.66
  5. Step 5: Solve for x
    x = 531,000,887,999.66/814,731.13
  6. Step 6: Final answer
    x = 651,749.85

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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.