Home / 905,113.20-1,357,586.82-306,079.56

Finding the Fourth Proportional to 905,113.20, 1,357,586.82 and 306,079.56

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Solution

The fourth proportional to 905,113.20, 1,357,586.82 and 306,079.56 is: 459,091.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,113.20 : 1,357,586.82 = 306,079.56 : x
  2. Step 2: Convert to fraction form
    905,113.20/1,357,586.82 = 306,079.56/x
  3. Step 3: Cross multiply
    905,113.20x = 1,357,586.82 × 306,079.56
  4. Step 4: Simplify right side
    905,113.20x = 415,529,576,527.40
  5. Step 5: Solve for x
    x = 415,529,576,527.40/905,113.20
  6. Step 6: Final answer
    x = 459,091.28

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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.