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Finding the Fourth Proportional to 702,370.71, 969,270.44 and 396,511.47

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Solution

The fourth proportional to 702,370.71, 969,270.44 and 396,511.47 is: 547,185.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,370.71 : 969,270.44 = 396,511.47 : x
  2. Step 2: Convert to fraction form
    702,370.71/969,270.44 = 396,511.47/x
  3. Step 3: Cross multiply
    702,370.71x = 969,270.44 × 396,511.47
  4. Step 4: Simplify right side
    702,370.71x = 384,326,845,009.39
  5. Step 5: Solve for x
    x = 384,326,845,009.39/702,370.71
  6. Step 6: Final answer
    x = 547,185.18

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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.