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Finding the Fourth Proportional to 703,022.88, 970,172.82 and 380,732.04

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Solution

The fourth proportional to 703,022.88, 970,172.82 and 380,732.04 is: 525,410.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,022.88 : 970,172.82 = 380,732.04 : x
  2. Step 2: Convert to fraction form
    703,022.88/970,172.82 = 380,732.04/x
  3. Step 3: Cross multiply
    703,022.88x = 970,172.82 × 380,732.04
  4. Step 4: Simplify right side
    703,022.88x = 369,375,876,911.15
  5. Step 5: Solve for x
    x = 369,375,876,911.15/703,022.88
  6. Step 6: Final answer
    x = 525,410.89

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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.