Home / 2,069,839.71-3,103,632.65-721,639.87

Finding the Fourth Proportional to 2,069,839.71, 3,103,632.65 and 721,639.87

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Solution

The fourth proportional to 2,069,839.71, 3,103,632.65 and 721,639.87 is: 1,082,066.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,069,839.71 : 3,103,632.65 = 721,639.87 : x
  2. Step 2: Convert to fraction form
    2,069,839.71/3,103,632.65 = 721,639.87/x
  3. Step 3: Cross multiply
    2,069,839.71x = 3,103,632.65 × 721,639.87
  4. Step 4: Simplify right side
    2,069,839.71x = 2,239,705,056,118.77
  5. Step 5: Solve for x
    x = 2,239,705,056,118.77/2,069,839.71
  6. Step 6: Final answer
    x = 1,082,066.91

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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.