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Finding the Fourth Proportional to 702,778.26, 969,832.60 and 380,488.58

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Solution

The fourth proportional to 702,778.26, 969,832.60 and 380,488.58 is: 525,073.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,778.26 : 969,832.60 = 380,488.58 : x
  2. Step 2: Convert to fraction form
    702,778.26/969,832.60 = 380,488.58/x
  3. Step 3: Cross multiply
    702,778.26x = 969,832.60 × 380,488.58
  4. Step 4: Simplify right side
    702,778.26x = 369,010,228,811.71
  5. Step 5: Solve for x
    x = 369,010,228,811.71/702,778.26
  6. Step 6: Final answer
    x = 525,073.48

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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.