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Finding the Fourth Proportional to 702,841.60, 969,921.86 and 380,551.91

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Solution

The fourth proportional to 702,841.60, 969,921.86 and 380,551.91 is: 525,161.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,841.60 : 969,921.86 = 380,551.91 : x
  2. Step 2: Convert to fraction form
    702,841.60/969,921.86 = 380,551.91/x
  3. Step 3: Cross multiply
    702,841.60x = 969,921.86 × 380,551.91
  4. Step 4: Simplify right side
    702,841.60x = 369,105,616,373.75
  5. Step 5: Solve for x
    x = 369,105,616,373.75/702,841.60
  6. Step 6: Final answer
    x = 525,161.88

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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.