Home / 1,405,900.40-2,109,757.80-775,266.80

Finding the Fourth Proportional to 1,405,900.40, 2,109,757.80 and 775,266.80

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Solution

The fourth proportional to 1,405,900.40, 2,109,757.80 and 775,266.80 is: 1,163,400.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,900.40 : 2,109,757.80 = 775,266.80 : x
  2. Step 2: Convert to fraction form
    1,405,900.40/2,109,757.80 = 775,266.80/x
  3. Step 3: Cross multiply
    1,405,900.40x = 2,109,757.80 × 775,266.80
  4. Step 4: Simplify right side
    1,405,900.40x = 1,635,625,178,381.04
  5. Step 5: Solve for x
    x = 1,635,625,178,381.04/1,405,900.40
  6. Step 6: Final answer
    x = 1,163,400.46

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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.