Home / 919,850.38-1,379,670.42-245,984.20

Finding the Fourth Proportional to 919,850.38, 1,379,670.42 and 245,984.20

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Solution

The fourth proportional to 919,850.38, 1,379,670.42 and 245,984.20 is: 368,948.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,850.38 : 1,379,670.42 = 245,984.20 : x
  2. Step 2: Convert to fraction form
    919,850.38/1,379,670.42 = 245,984.20/x
  3. Step 3: Cross multiply
    919,850.38x = 1,379,670.42 × 245,984.20
  4. Step 4: Simplify right side
    919,850.38x = 339,377,124,527.36
  5. Step 5: Solve for x
    x = 339,377,124,527.36/919,850.38
  6. Step 6: Final answer
    x = 368,948.18

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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.