Home / 1,919,816.48-2,879,199.83-721,646.66

Finding the Fourth Proportional to 1,919,816.48, 2,879,199.83 and 721,646.66

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Solution

The fourth proportional to 1,919,816.48, 2,879,199.83 and 721,646.66 is: 1,082,272.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,816.48 : 2,879,199.83 = 721,646.66 : x
  2. Step 2: Convert to fraction form
    1,919,816.48/2,879,199.83 = 721,646.66/x
  3. Step 3: Cross multiply
    1,919,816.48x = 2,879,199.83 × 721,646.66
  4. Step 4: Simplify right side
    1,919,816.48x = 2,077,764,922,787.84
  5. Step 5: Solve for x
    x = 2,077,764,922,787.84/1,919,816.48
  6. Step 6: Final answer
    x = 1,082,272.68

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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.