Home / 513,899.53-709,096.75-322,776.79

Finding the Fourth Proportional to 513,899.53, 709,096.75 and 322,776.79

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Solution

The fourth proportional to 513,899.53, 709,096.75 and 322,776.79 is: 445,378.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,899.53 : 709,096.75 = 322,776.79 : x
  2. Step 2: Convert to fraction form
    513,899.53/709,096.75 = 322,776.79/x
  3. Step 3: Cross multiply
    513,899.53x = 709,096.75 × 322,776.79
  4. Step 4: Simplify right side
    513,899.53x = 228,879,972,764.43
  5. Step 5: Solve for x
    x = 228,879,972,764.43/513,899.53
  6. Step 6: Final answer
    x = 445,378.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.