Home / 1,098,744.40-1,648,116.60-779,879.80

Finding the Fourth Proportional to 1,098,744.40, 1,648,116.60 and 779,879.80

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Solution

The fourth proportional to 1,098,744.40, 1,648,116.60 and 779,879.80 is: 1,169,819.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,744.40 : 1,648,116.60 = 779,879.80 : x
  2. Step 2: Convert to fraction form
    1,098,744.40/1,648,116.60 = 779,879.80/x
  3. Step 3: Cross multiply
    1,098,744.40x = 1,648,116.60 × 779,879.80
  4. Step 4: Simplify right side
    1,098,744.40x = 1,285,332,844,384.68
  5. Step 5: Solve for x
    x = 1,285,332,844,384.68/1,098,744.40
  6. Step 6: Final answer
    x = 1,169,819.70

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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.