Home / 1,383,962.29-1,909,869.16-772,115.18

Finding the Fourth Proportional to 1,383,962.29, 1,909,869.16 and 772,115.18

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Solution

The fourth proportional to 1,383,962.29, 1,909,869.16 and 772,115.18 is: 1,065,519.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,962.29 : 1,909,869.16 = 772,115.18 : x
  2. Step 2: Convert to fraction form
    1,383,962.29/1,909,869.16 = 772,115.18/x
  3. Step 3: Cross multiply
    1,383,962.29x = 1,909,869.16 × 772,115.18
  4. Step 4: Simplify right side
    1,383,962.29x = 1,474,638,958,770.22
  5. Step 5: Solve for x
    x = 1,474,638,958,770.22/1,383,962.29
  6. Step 6: Final answer
    x = 1,065,519.61

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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.