Home / 1,210,832.50-1,669,155.04-775,187.57

Finding the Fourth Proportional to 1,210,832.50, 1,669,155.04 and 775,187.57

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Solution

The fourth proportional to 1,210,832.50, 1,669,155.04 and 775,187.57 is: 1,068,610.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,832.50 : 1,669,155.04 = 775,187.57 : x
  2. Step 2: Convert to fraction form
    1,210,832.50/1,669,155.04 = 775,187.57/x
  3. Step 3: Cross multiply
    1,210,832.50x = 1,669,155.04 × 775,187.57
  4. Step 4: Simplify right side
    1,210,832.50x = 1,293,908,239,410.85
  5. Step 5: Solve for x
    x = 1,293,908,239,410.85/1,210,832.50
  6. Step 6: Final answer
    x = 1,068,610.43

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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.