Home / 1,313,287.60-1,969,931.40-890,273.20

Finding the Fourth Proportional to 1,313,287.60, 1,969,931.40 and 890,273.20

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Solution

The fourth proportional to 1,313,287.60, 1,969,931.40 and 890,273.20 is: 1,335,409.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,287.60 : 1,969,931.40 = 890,273.20 : x
  2. Step 2: Convert to fraction form
    1,313,287.60/1,969,931.40 = 890,273.20/x
  3. Step 3: Cross multiply
    1,313,287.60x = 1,969,931.40 × 890,273.20
  4. Step 4: Simplify right side
    1,313,287.60x = 1,753,777,131,258.48
  5. Step 5: Solve for x
    x = 1,753,777,131,258.48/1,313,287.60
  6. Step 6: Final answer
    x = 1,335,409.80

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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.