Home / 1,981,995.30-2,972,992.95-1,645,707.60

Finding the Fourth Proportional to 1,981,995.30, 2,972,992.95 and 1,645,707.60

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Solution

The fourth proportional to 1,981,995.30, 2,972,992.95 and 1,645,707.60 is: 2,468,561.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,995.30 : 2,972,992.95 = 1,645,707.60 : x
  2. Step 2: Convert to fraction form
    1,981,995.30/2,972,992.95 = 1,645,707.60/x
  3. Step 3: Cross multiply
    1,981,995.30x = 2,972,992.95 × 1,645,707.60
  4. Step 4: Simplify right side
    1,981,995.30x = 4,892,677,092,561.42
  5. Step 5: Solve for x
    x = 4,892,677,092,561.42/1,981,995.30
  6. Step 6: Final answer
    x = 2,468,561.40

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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.