Home / 1,992,812.10-2,989,218.15-663,116.10

Finding the Fourth Proportional to 1,992,812.10, 2,989,218.15 and 663,116.10

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Solution

The fourth proportional to 1,992,812.10, 2,989,218.15 and 663,116.10 is: 994,674.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,812.10 : 2,989,218.15 = 663,116.10 : x
  2. Step 2: Convert to fraction form
    1,992,812.10/2,989,218.15 = 663,116.10/x
  3. Step 3: Cross multiply
    1,992,812.10x = 2,989,218.15 × 663,116.10
  4. Step 4: Simplify right side
    1,992,812.10x = 1,982,198,681,677.22
  5. Step 5: Solve for x
    x = 1,982,198,681,677.22/1,992,812.10
  6. Step 6: Final answer
    x = 994,674.15

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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.