Home / 724,152.20-1,086,222.90-218,712.20

Finding the Fourth Proportional to 724,152.20, 1,086,222.90 and 218,712.20

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Solution

The fourth proportional to 724,152.20, 1,086,222.90 and 218,712.20 is: 328,066.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,152.20 : 1,086,222.90 = 218,712.20 : x
  2. Step 2: Convert to fraction form
    724,152.20/1,086,222.90 = 218,712.20/x
  3. Step 3: Cross multiply
    724,152.20x = 1,086,222.90 × 218,712.20
  4. Step 4: Simplify right side
    724,152.20x = 237,570,200,149.38
  5. Step 5: Solve for x
    x = 237,570,200,149.38/724,152.20
  6. Step 6: Final answer
    x = 328,066.67

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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.