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Finding the Fourth Proportional to 703,078.52, 970,243.53 and 380,781.24

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Solution

The fourth proportional to 703,078.52, 970,243.53 and 380,781.24 is: 525,475.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,078.52 : 970,243.53 = 380,781.24 : x
  2. Step 2: Convert to fraction form
    703,078.52/970,243.53 = 380,781.24/x
  3. Step 3: Cross multiply
    703,078.52x = 970,243.53 × 380,781.24
  4. Step 4: Simplify right side
    703,078.52x = 369,450,533,027.45
  5. Step 5: Solve for x
    x = 369,450,533,027.45/703,078.52
  6. Step 6: Final answer
    x = 525,475.50

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Similar ratio
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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.