Home / 1,992,807.15-2,989,685.01-644,969.76

Finding the Fourth Proportional to 1,992,807.15, 2,989,685.01 and 644,969.76

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Solution

The fourth proportional to 1,992,807.15, 2,989,685.01 and 644,969.76 is: 967,608.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,807.15 : 2,989,685.01 = 644,969.76 : x
  2. Step 2: Convert to fraction form
    1,992,807.15/2,989,685.01 = 644,969.76/x
  3. Step 3: Cross multiply
    1,992,807.15x = 2,989,685.01 × 644,969.76
  4. Step 4: Simplify right side
    1,992,807.15x = 1,928,256,423,375.30
  5. Step 5: Solve for x
    x = 1,928,256,423,375.30/1,992,807.15
  6. Step 6: Final answer
    x = 967,608.14

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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.