Home / 854,865.80-1,282,298.70-842,424.20

Finding the Fourth Proportional to 854,865.80, 1,282,298.70 and 842,424.20

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Solution

The fourth proportional to 854,865.80, 1,282,298.70 and 842,424.20 is: 1,263,636.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,865.80 : 1,282,298.70 = 842,424.20 : x
  2. Step 2: Convert to fraction form
    854,865.80/1,282,298.70 = 842,424.20/x
  3. Step 3: Cross multiply
    854,865.80x = 1,282,298.70 × 842,424.20
  4. Step 4: Simplify right side
    854,865.80x = 1,080,239,456,508.54
  5. Step 5: Solve for x
    x = 1,080,239,456,508.54/854,865.80
  6. Step 6: Final answer
    x = 1,263,636.30

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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.