Home / 545,972.90-818,084.55-345,935.30

Finding the Fourth Proportional to 545,972.90, 818,084.55 and 345,935.30

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Solution

The fourth proportional to 545,972.90, 818,084.55 and 345,935.30 is: 518,348.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,972.90 : 818,084.55 = 345,935.30 : x
  2. Step 2: Convert to fraction form
    545,972.90/818,084.55 = 345,935.30/x
  3. Step 3: Cross multiply
    545,972.90x = 818,084.55 × 345,935.30
  4. Step 4: Simplify right side
    545,972.90x = 283,004,324,229.62
  5. Step 5: Solve for x
    x = 283,004,324,229.62/545,972.90
  6. Step 6: Final answer
    x = 518,348.67

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Double scale
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1.5x scale

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.