Home / 1,412,903.04-1,949,857.47-809,407.68

Finding the Fourth Proportional to 1,412,903.04, 1,949,857.47 and 809,407.68

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Solution

The fourth proportional to 1,412,903.04, 1,949,857.47 and 809,407.68 is: 1,117,011.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,903.04 : 1,949,857.47 = 809,407.68 : x
  2. Step 2: Convert to fraction form
    1,412,903.04/1,949,857.47 = 809,407.68/x
  3. Step 3: Cross multiply
    1,412,903.04x = 1,949,857.47 × 809,407.68
  4. Step 4: Simplify right side
    1,412,903.04x = 1,578,229,611,123.37
  5. Step 5: Solve for x
    x = 1,578,229,611,123.37/1,412,903.04
  6. Step 6: Final answer
    x = 1,117,011.97

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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.