Home / 1,120,644.18-1,682,110.40-820,232.46

Finding the Fourth Proportional to 1,120,644.18, 1,682,110.40 and 820,232.46

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Solution

The fourth proportional to 1,120,644.18, 1,682,110.40 and 820,232.46 is: 1,231,186.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,644.18 : 1,682,110.40 = 820,232.46 : x
  2. Step 2: Convert to fraction form
    1,120,644.18/1,682,110.40 = 820,232.46/x
  3. Step 3: Cross multiply
    1,120,644.18x = 1,682,110.40 × 820,232.46
  4. Step 4: Simplify right side
    1,120,644.18x = 1,379,721,547,282.42
  5. Step 5: Solve for x
    x = 1,379,721,547,282.42/1,120,644.18
  6. Step 6: Final answer
    x = 1,231,186.11

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Double scale
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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.