Home / 513,875.40-770,813.10-324,918.60

Finding the Fourth Proportional to 513,875.40, 770,813.10 and 324,918.60

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Solution

The fourth proportional to 513,875.40, 770,813.10 and 324,918.60 is: 487,377.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,875.40 : 770,813.10 = 324,918.60 : x
  2. Step 2: Convert to fraction form
    513,875.40/770,813.10 = 324,918.60/x
  3. Step 3: Cross multiply
    513,875.40x = 770,813.10 × 324,918.60
  4. Step 4: Simplify right side
    513,875.40x = 250,451,513,313.66
  5. Step 5: Solve for x
    x = 250,451,513,313.66/513,875.40
  6. Step 6: Final answer
    x = 487,377.90

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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.