Home / 2,105,041.77-3,158,036.78-665,812.31

Finding the Fourth Proportional to 2,105,041.77, 3,158,036.78 and 665,812.31

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Solution

The fourth proportional to 2,105,041.77, 3,158,036.78 and 665,812.31 is: 998,868.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,041.77 : 3,158,036.78 = 665,812.31 : x
  2. Step 2: Convert to fraction form
    2,105,041.77/3,158,036.78 = 665,812.31/x
  3. Step 3: Cross multiply
    2,105,041.77x = 3,158,036.78 × 665,812.31
  4. Step 4: Simplify right side
    2,105,041.77x = 2,102,659,744,437.52
  5. Step 5: Solve for x
    x = 2,102,659,744,437.52/2,105,041.77
  6. Step 6: Final answer
    x = 998,868.42

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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.