Home / 1,211,200.92-1,670,080.08-775,036.56

Finding the Fourth Proportional to 1,211,200.92, 1,670,080.08 and 775,036.56

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Solution

The fourth proportional to 1,211,200.92, 1,670,080.08 and 775,036.56 is: 1,068,669.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,200.92 : 1,670,080.08 = 775,036.56 : x
  2. Step 2: Convert to fraction form
    1,211,200.92/1,670,080.08 = 775,036.56/x
  3. Step 3: Cross multiply
    1,211,200.92x = 1,670,080.08 × 775,036.56
  4. Step 4: Simplify right side
    1,211,200.92x = 1,294,373,120,127.72
  5. Step 5: Solve for x
    x = 1,294,373,120,127.72/1,211,200.92
  6. Step 6: Final answer
    x = 1,068,669.20

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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.