Home / 1,992,895.02-2,989,817.10-645,057.90

Finding the Fourth Proportional to 1,992,895.02, 2,989,817.10 and 645,057.90

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Solution

The fourth proportional to 1,992,895.02, 2,989,817.10 and 645,057.90 is: 967,740.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,895.02 : 2,989,817.10 = 645,057.90 : x
  2. Step 2: Convert to fraction form
    1,992,895.02/2,989,817.10 = 645,057.90/x
  3. Step 3: Cross multiply
    1,992,895.02x = 2,989,817.10 × 645,057.90
  4. Step 4: Simplify right side
    1,992,895.02x = 1,928,605,139,910.09
  5. Step 5: Solve for x
    x = 1,928,605,139,910.09/1,992,895.02
  6. Step 6: Final answer
    x = 967,740.46

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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.