Home / 1,490,949.81-2,057,456.74-911,142.97

Finding the Fourth Proportional to 1,490,949.81, 2,057,456.74 and 911,142.97

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Solution

The fourth proportional to 1,490,949.81, 2,057,456.74 and 911,142.97 is: 1,257,344.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490,949.81 : 2,057,456.74 = 911,142.97 : x
  2. Step 2: Convert to fraction form
    1,490,949.81/2,057,456.74 = 911,142.97/x
  3. Step 3: Cross multiply
    1,490,949.81x = 2,057,456.74 × 911,142.97
  4. Step 4: Simplify right side
    1,490,949.81x = 1,874,637,234,842.37
  5. Step 5: Solve for x
    x = 1,874,637,234,842.37/1,490,949.81
  6. Step 6: Final answer
    x = 1,257,344.29

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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.