Home / 691,429.56-1,036,462.32-331,184.40

Finding the Fourth Proportional to 691,429.56, 1,036,462.32 and 331,184.40

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Solution

The fourth proportional to 691,429.56, 1,036,462.32 and 331,184.40 is: 496,449.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,429.56 : 1,036,462.32 = 331,184.40 : x
  2. Step 2: Convert to fraction form
    691,429.56/1,036,462.32 = 331,184.40/x
  3. Step 3: Cross multiply
    691,429.56x = 1,036,462.32 × 331,184.40
  4. Step 4: Simplify right side
    691,429.56x = 343,260,151,571.81
  5. Step 5: Solve for x
    x = 343,260,151,571.81/691,429.56
  6. Step 6: Final answer
    x = 496,449.92

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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.