Home / 1,241,115.60-1,859,923.80-766,390.80

Finding the Fourth Proportional to 1,241,115.60, 1,859,923.80 and 766,390.80

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Solution

The fourth proportional to 1,241,115.60, 1,859,923.80 and 766,390.80 is: 1,148,505.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,115.60 : 1,859,923.80 = 766,390.80 : x
  2. Step 2: Convert to fraction form
    1,241,115.60/1,859,923.80 = 766,390.80/x
  3. Step 3: Cross multiply
    1,241,115.60x = 1,859,923.80 × 766,390.80
  4. Step 4: Simplify right side
    1,241,115.60x = 1,425,428,489,021.04
  5. Step 5: Solve for x
    x = 1,425,428,489,021.04/1,241,115.60
  6. Step 6: Final answer
    x = 1,148,505.82

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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.