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Finding the Fourth Proportional to 2,579,810.88, 3,869,720.64 and 982,007.04

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Solution

The fourth proportional to 2,579,810.88, 3,869,720.64 and 982,007.04 is: 1,473,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,579,810.88 : 3,869,720.64 = 982,007.04 : x
  2. Step 2: Convert to fraction form
    2,579,810.88/3,869,720.64 = 982,007.04/x
  3. Step 3: Cross multiply
    2,579,810.88x = 3,869,720.64 × 982,007.04
  4. Step 4: Simplify right side
    2,579,810.88x = 3,800,092,911,313.31
  5. Step 5: Solve for x
    x = 3,800,092,911,313.31/2,579,810.88
  6. Step 6: Final answer
    x = 1,473,012.20

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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.