Home / 1,440,106.60-2,159,123.10-809,213.80

Finding the Fourth Proportional to 1,440,106.60, 2,159,123.10 and 809,213.80

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Solution

The fourth proportional to 1,440,106.60, 2,159,123.10 and 809,213.80 is: 1,213,238.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,106.60 : 2,159,123.10 = 809,213.80 : x
  2. Step 2: Convert to fraction form
    1,440,106.60/2,159,123.10 = 809,213.80/x
  3. Step 3: Cross multiply
    1,440,106.60x = 2,159,123.10 × 809,213.80
  4. Step 4: Simplify right side
    1,440,106.60x = 1,747,192,208,418.78
  5. Step 5: Solve for x
    x = 1,747,192,208,418.78/1,440,106.60
  6. Step 6: Final answer
    x = 1,213,238.11

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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.