Home / 1,500,728.94-2,071,212.39-920,299.14

Finding the Fourth Proportional to 1,500,728.94, 2,071,212.39 and 920,299.14

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Solution

The fourth proportional to 1,500,728.94, 2,071,212.39 and 920,299.14 is: 1,270,139.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,728.94 : 2,071,212.39 = 920,299.14 : x
  2. Step 2: Convert to fraction form
    1,500,728.94/2,071,212.39 = 920,299.14/x
  3. Step 3: Cross multiply
    1,500,728.94x = 2,071,212.39 × 920,299.14
  4. Step 4: Simplify right side
    1,500,728.94x = 1,906,134,981,274.34
  5. Step 5: Solve for x
    x = 1,906,134,981,274.34/1,500,728.94
  6. Step 6: Final answer
    x = 1,270,139.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.