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Finding the Fourth Proportional to 702,740.88, 969,787.69 and 380,456.39

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Solution

The fourth proportional to 702,740.88, 969,787.69 and 380,456.39 is: 525,032.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,740.88 : 969,787.69 = 380,456.39 : x
  2. Step 2: Convert to fraction form
    702,740.88/969,787.69 = 380,456.39/x
  3. Step 3: Cross multiply
    702,740.88x = 969,787.69 × 380,456.39
  4. Step 4: Simplify right side
    702,740.88x = 368,961,925,077.17
  5. Step 5: Solve for x
    x = 368,961,925,077.17/702,740.88
  6. Step 6: Final answer
    x = 525,032.68

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1.5x scale

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.