Home / 1,399,749.40-2,098,068.90-769,115.80

Finding the Fourth Proportional to 1,399,749.40, 2,098,068.90 and 769,115.80

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Solution

The fourth proportional to 1,399,749.40, 2,098,068.90 and 769,115.80 is: 1,152,819.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,399,749.40 : 2,098,068.90 = 769,115.80 : x
  2. Step 2: Convert to fraction form
    1,399,749.40/2,098,068.90 = 769,115.80/x
  3. Step 3: Cross multiply
    1,399,749.40x = 2,098,068.90 × 769,115.80
  4. Step 4: Simplify right side
    1,399,749.40x = 1,613,657,940,478.62
  5. Step 5: Solve for x
    x = 1,613,657,940,478.62/1,399,749.40
  6. Step 6: Final answer
    x = 1,152,819.17

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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.