Home / 1,284,480.84-1,926,991.80-485,744.72

Finding the Fourth Proportional to 1,284,480.84, 1,926,991.80 and 485,744.72

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Solution

The fourth proportional to 1,284,480.84, 1,926,991.80 and 485,744.72 is: 728,719.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,480.84 : 1,926,991.80 = 485,744.72 : x
  2. Step 2: Convert to fraction form
    1,284,480.84/1,926,991.80 = 485,744.72/x
  3. Step 3: Cross multiply
    1,284,480.84x = 1,926,991.80 × 485,744.72
  4. Step 4: Simplify right side
    1,284,480.84x = 936,026,092,333.30
  5. Step 5: Solve for x
    x = 936,026,092,333.30/1,284,480.84
  6. Step 6: Final answer
    x = 728,719.39

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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.