Home / 1,287,546.54-1,931,393.64-340,892.66

Finding the Fourth Proportional to 1,287,546.54, 1,931,393.64 and 340,892.66

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Solution

The fourth proportional to 1,287,546.54, 1,931,393.64 and 340,892.66 is: 511,358.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,546.54 : 1,931,393.64 = 340,892.66 : x
  2. Step 2: Convert to fraction form
    1,287,546.54/1,931,393.64 = 340,892.66/x
  3. Step 3: Cross multiply
    1,287,546.54x = 1,931,393.64 × 340,892.66
  4. Step 4: Simplify right side
    1,287,546.54x = 658,397,915,446.68
  5. Step 5: Solve for x
    x = 658,397,915,446.68/1,287,546.54
  6. Step 6: Final answer
    x = 511,358.54

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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.