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Finding the Fourth Proportional to 703,224.64, 970,211.28 and 397,256.32

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Solution

The fourth proportional to 703,224.64, 970,211.28 and 397,256.32 is: 548,078.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,224.64 : 970,211.28 = 397,256.32 : x
  2. Step 2: Convert to fraction form
    703,224.64/970,211.28 = 397,256.32/x
  3. Step 3: Cross multiply
    703,224.64x = 970,211.28 × 397,256.32
  4. Step 4: Simplify right side
    703,224.64x = 385,422,562,715.29
  5. Step 5: Solve for x
    x = 385,422,562,715.29/703,224.64
  6. Step 6: Final answer
    x = 548,078.87

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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.