Home / 1,419,875.12-1,959,419.87-775,290.74

Finding the Fourth Proportional to 1,419,875.12, 1,959,419.87 and 775,290.74

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Solution

The fourth proportional to 1,419,875.12, 1,959,419.87 and 775,290.74 is: 1,069,896.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,875.12 : 1,959,419.87 = 775,290.74 : x
  2. Step 2: Convert to fraction form
    1,419,875.12/1,959,419.87 = 775,290.74/x
  3. Step 3: Cross multiply
    1,419,875.12x = 1,959,419.87 × 775,290.74
  4. Step 4: Simplify right side
    1,419,875.12x = 1,519,120,081,238.53
  5. Step 5: Solve for x
    x = 1,519,120,081,238.53/1,419,875.12
  6. Step 6: Final answer
    x = 1,069,896.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.