Home / 854,867.80-1,282,301.70-842,426.20

Finding the Fourth Proportional to 854,867.80, 1,282,301.70 and 842,426.20

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Solution

The fourth proportional to 854,867.80, 1,282,301.70 and 842,426.20 is: 1,263,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,867.80 : 1,282,301.70 = 842,426.20 : x
  2. Step 2: Convert to fraction form
    854,867.80/1,282,301.70 = 842,426.20/x
  3. Step 3: Cross multiply
    854,867.80x = 1,282,301.70 × 842,426.20
  4. Step 4: Simplify right side
    854,867.80x = 1,080,244,548,384.54
  5. Step 5: Solve for x
    x = 1,080,244,548,384.54/854,867.80
  6. Step 6: Final answer
    x = 1,263,639.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.