Home / 2,142,509.87-3,211,505.31-702,817.34

Finding the Fourth Proportional to 2,142,509.87, 3,211,505.31 and 702,817.34

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Solution

The fourth proportional to 2,142,509.87, 3,211,505.31 and 702,817.34 is: 1,053,484.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142,509.87 : 3,211,505.31 = 702,817.34 : x
  2. Step 2: Convert to fraction form
    2,142,509.87/3,211,505.31 = 702,817.34/x
  3. Step 3: Cross multiply
    2,142,509.87x = 3,211,505.31 × 702,817.34
  4. Step 4: Simplify right side
    2,142,509.87x = 2,257,101,619,370.08
  5. Step 5: Solve for x
    x = 2,257,101,619,370.08/2,142,509.87
  6. Step 6: Final answer
    x = 1,053,484.82

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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.