Home / 1,245,902.25-1,866,138.93-818,956.11

Finding the Fourth Proportional to 1,245,902.25, 1,866,138.93 and 818,956.11

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Solution

The fourth proportional to 1,245,902.25, 1,866,138.93 and 818,956.11 is: 1,226,649.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,902.25 : 1,866,138.93 = 818,956.11 : x
  2. Step 2: Convert to fraction form
    1,245,902.25/1,866,138.93 = 818,956.11/x
  3. Step 3: Cross multiply
    1,245,902.25x = 1,866,138.93 × 818,956.11
  4. Step 4: Simplify right side
    1,245,902.25x = 1,528,285,878,832.36
  5. Step 5: Solve for x
    x = 1,528,285,878,832.36/1,245,902.25
  6. Step 6: Final answer
    x = 1,226,649.91

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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.