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Finding the Fourth Proportional to 703,354.20, 970,627.50 and 381,072.48

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Solution

The fourth proportional to 703,354.20, 970,627.50 and 381,072.48 is: 525,879.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,354.20 : 970,627.50 = 381,072.48 : x
  2. Step 2: Convert to fraction form
    703,354.20/970,627.50 = 381,072.48/x
  3. Step 3: Cross multiply
    703,354.20x = 970,627.50 × 381,072.48
  4. Step 4: Simplify right side
    703,354.20x = 369,879,428,581.20
  5. Step 5: Solve for x
    x = 369,879,428,581.20/703,354.20
  6. Step 6: Final answer
    x = 525,879.32

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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.