Home / 1,979,689.84-2,970,658-1,068,860.10

Finding the Fourth Proportional to 1,979,689.84, 2,970,658 and 1,068,860.10

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Solution

The fourth proportional to 1,979,689.84, 2,970,658 and 1,068,860.10 is: 1,603,896.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979,689.84 : 2,970,658 = 1,068,860.10 : x
  2. Step 2: Convert to fraction form
    1,979,689.84/2,970,658 = 1,068,860.10/x
  3. Step 3: Cross multiply
    1,979,689.84x = 2,970,658 × 1,068,860.10
  4. Step 4: Simplify right side
    1,979,689.84x = 3,175,217,806,945.80
  5. Step 5: Solve for x
    x = 3,175,217,806,945.80/1,979,689.84
  6. Step 6: Final answer
    x = 1,603,896.60

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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.