Home / 1,420,381.18-1,960,116.06-775,801.54

Finding the Fourth Proportional to 1,420,381.18, 1,960,116.06 and 775,801.54

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Solution

The fourth proportional to 1,420,381.18, 1,960,116.06 and 775,801.54 is: 1,070,600.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,381.18 : 1,960,116.06 = 775,801.54 : x
  2. Step 2: Convert to fraction form
    1,420,381.18/1,960,116.06 = 775,801.54/x
  3. Step 3: Cross multiply
    1,420,381.18x = 1,960,116.06 × 775,801.54
  4. Step 4: Simplify right side
    1,420,381.18x = 1,520,661,057,926.73
  5. Step 5: Solve for x
    x = 1,520,661,057,926.73/1,420,381.18
  6. Step 6: Final answer
    x = 1,070,600.68

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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.