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Finding the Fourth Proportional to 702,787.64, 969,854.82 and 380,504.48

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Solution

The fourth proportional to 702,787.64, 969,854.82 and 380,504.48 is: 525,100.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,787.64 : 969,854.82 = 380,504.48 : x
  2. Step 2: Convert to fraction form
    702,787.64/969,854.82 = 380,504.48/x
  3. Step 3: Cross multiply
    702,787.64x = 969,854.82 × 380,504.48
  4. Step 4: Simplify right side
    702,787.64x = 369,034,103,959.59
  5. Step 5: Solve for x
    x = 369,034,103,959.59/702,787.64
  6. Step 6: Final answer
    x = 525,100.45

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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.