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Finding the Fourth Proportional to 702,371.48, 969,275.20 and 380,081.54

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Solution

The fourth proportional to 702,371.48, 969,275.20 and 380,081.54 is: 524,513.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,371.48 : 969,275.20 = 380,081.54 : x
  2. Step 2: Convert to fraction form
    702,371.48/969,275.20 = 380,081.54/x
  3. Step 3: Cross multiply
    702,371.48x = 969,275.20 × 380,081.54
  4. Step 4: Simplify right side
    702,371.48x = 368,403,608,799.40
  5. Step 5: Solve for x
    x = 368,403,608,799.40/702,371.48
  6. Step 6: Final answer
    x = 524,513.91

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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.