Home / 1,348,621.17-1,861,133.79-805,072.56

Finding the Fourth Proportional to 1,348,621.17, 1,861,133.79 and 805,072.56

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Solution

The fourth proportional to 1,348,621.17, 1,861,133.79 and 805,072.56 is: 1,111,021.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,621.17 : 1,861,133.79 = 805,072.56 : x
  2. Step 2: Convert to fraction form
    1,348,621.17/1,861,133.79 = 805,072.56/x
  3. Step 3: Cross multiply
    1,348,621.17x = 1,861,133.79 × 805,072.56
  4. Step 4: Simplify right side
    1,348,621.17x = 1,498,347,744,817.80
  5. Step 5: Solve for x
    x = 1,498,347,744,817.80/1,348,621.17
  6. Step 6: Final answer
    x = 1,111,021.97

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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.