Home / 859,694.40-1,289,541.60-823,291.20

Finding the Fourth Proportional to 859,694.40, 1,289,541.60 and 823,291.20

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Solution

The fourth proportional to 859,694.40, 1,289,541.60 and 823,291.20 is: 1,234,936.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,694.40 : 1,289,541.60 = 823,291.20 : x
  2. Step 2: Convert to fraction form
    859,694.40/1,289,541.60 = 823,291.20/x
  3. Step 3: Cross multiply
    859,694.40x = 1,289,541.60 × 823,291.20
  4. Step 4: Simplify right side
    859,694.40x = 1,061,668,251,313.92
  5. Step 5: Solve for x
    x = 1,061,668,251,313.92/859,694.40
  6. Step 6: Final answer
    x = 1,234,936.80

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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.