Home / 1,992,836.78-2,988,670.08-912,737.96

Finding the Fourth Proportional to 1,992,836.78, 2,988,670.08 and 912,737.96

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Solution

The fourth proportional to 1,992,836.78, 2,988,670.08 and 912,737.96 is: 1,368,838.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,836.78 : 2,988,670.08 = 912,737.96 : x
  2. Step 2: Convert to fraction form
    1,992,836.78/2,988,670.08 = 912,737.96/x
  3. Step 3: Cross multiply
    1,992,836.78x = 2,988,670.08 × 912,737.96
  4. Step 4: Simplify right side
    1,992,836.78x = 2,727,872,631,932.24
  5. Step 5: Solve for x
    x = 2,727,872,631,932.24/1,992,836.78
  6. Step 6: Final answer
    x = 1,368,838.96

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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.