Home / 1,919,869.24-2,880,233.28-721,801.92

Finding the Fourth Proportional to 1,919,869.24, 2,880,233.28 and 721,801.92

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Solution

The fourth proportional to 1,919,869.24, 2,880,233.28 and 721,801.92 is: 1,082,864.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919,869.24 : 2,880,233.28 = 721,801.92 : x
  2. Step 2: Convert to fraction form
    1,919,869.24/2,880,233.28 = 721,801.92/x
  3. Step 3: Cross multiply
    1,919,869.24x = 2,880,233.28 × 721,801.92
  4. Step 4: Simplify right side
    1,919,869.24x = 2,078,957,911,551.90
  5. Step 5: Solve for x
    x = 2,078,957,911,551.90/1,919,869.24
  6. Step 6: Final answer
    x = 1,082,864.33

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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.