Home / 969,780.22-1,338,309.84-540,071.18

Finding the Fourth Proportional to 969,780.22, 1,338,309.84 and 540,071.18

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Solution

The fourth proportional to 969,780.22, 1,338,309.84 and 540,071.18 is: 745,305.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,780.22 : 1,338,309.84 = 540,071.18 : x
  2. Step 2: Convert to fraction form
    969,780.22/1,338,309.84 = 540,071.18/x
  3. Step 3: Cross multiply
    969,780.22x = 1,338,309.84 × 540,071.18
  4. Step 4: Simplify right side
    969,780.22x = 722,782,574,494.41
  5. Step 5: Solve for x
    x = 722,782,574,494.41/969,780.22
  6. Step 6: Final answer
    x = 745,305.54

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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.