Home / 770,847.57-1,155,872.97-338,388.03

Finding the Fourth Proportional to 770,847.57, 1,155,872.97 and 338,388.03

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Solution

The fourth proportional to 770,847.57, 1,155,872.97 and 338,388.03 is: 507,407.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,847.57 : 1,155,872.97 = 338,388.03 : x
  2. Step 2: Convert to fraction form
    770,847.57/1,155,872.97 = 338,388.03/x
  3. Step 3: Cross multiply
    770,847.57x = 1,155,872.97 × 338,388.03
  4. Step 4: Simplify right side
    770,847.57x = 391,133,577,248.55
  5. Step 5: Solve for x
    x = 391,133,577,248.55/770,847.57
  6. Step 6: Final answer
    x = 507,407.16

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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.