Home / 1,355,251.58-1,870,305.82-811,282.10

Finding the Fourth Proportional to 1,355,251.58, 1,870,305.82 and 811,282.10

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Solution

The fourth proportional to 1,355,251.58, 1,870,305.82 and 811,282.10 is: 1,119,604.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,251.58 : 1,870,305.82 = 811,282.10 : x
  2. Step 2: Convert to fraction form
    1,355,251.58/1,870,305.82 = 811,282.10/x
  3. Step 3: Cross multiply
    1,355,251.58x = 1,870,305.82 × 811,282.10
  4. Step 4: Simplify right side
    1,355,251.58x = 1,517,345,635,939.38
  5. Step 5: Solve for x
    x = 1,517,345,635,939.38/1,355,251.58
  6. Step 6: Final answer
    x = 1,119,604.41

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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.