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Finding the Fourth Proportional to 702,680.88, 969,698.49 and 380,390.89

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Solution

The fourth proportional to 702,680.88, 969,698.49 and 380,390.89 is: 524,938.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,680.88 : 969,698.49 = 380,390.89 : x
  2. Step 2: Convert to fraction form
    702,680.88/969,698.49 = 380,390.89/x
  3. Step 3: Cross multiply
    702,680.88x = 969,698.49 × 380,390.89
  4. Step 4: Simplify right side
    702,680.88x = 368,864,466,794.26
  5. Step 5: Solve for x
    x = 368,864,466,794.26/702,680.88
  6. Step 6: Final answer
    x = 524,938.82

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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.