Home / 513,355.24-770,027.96-139,378.24

Finding the Fourth Proportional to 513,355.24, 770,027.96 and 139,378.24

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Solution

The fourth proportional to 513,355.24, 770,027.96 and 139,378.24 is: 209,066.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,355.24 : 770,027.96 = 139,378.24 : x
  2. Step 2: Convert to fraction form
    513,355.24/770,027.96 = 139,378.24/x
  3. Step 3: Cross multiply
    513,355.24x = 770,027.96 × 139,378.24
  4. Step 4: Simplify right side
    513,355.24x = 107,325,141,815.59
  5. Step 5: Solve for x
    x = 107,325,141,815.59/513,355.24
  6. Step 6: Final answer
    x = 209,066.03

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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.