Home / 1,035,139.80-1,551,786.30-403,906.80

Finding the Fourth Proportional to 1,035,139.80, 1,551,786.30 and 403,906.80

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Solution

The fourth proportional to 1,035,139.80, 1,551,786.30 and 403,906.80 is: 605,499.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035,139.80 : 1,551,786.30 = 403,906.80 : x
  2. Step 2: Convert to fraction form
    1,035,139.80/1,551,786.30 = 403,906.80/x
  3. Step 3: Cross multiply
    1,035,139.80x = 1,551,786.30 × 403,906.80
  4. Step 4: Simplify right side
    1,035,139.80x = 626,777,038,716.84
  5. Step 5: Solve for x
    x = 626,777,038,716.84/1,035,139.80
  6. Step 6: Final answer
    x = 605,499.89

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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.