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Finding the Fourth Proportional to 703,422.02, 970,709.60 and 397,491.77

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Solution

The fourth proportional to 703,422.02, 970,709.60 and 397,491.77 is: 548,531.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,422.02 : 970,709.60 = 397,491.77 : x
  2. Step 2: Convert to fraction form
    703,422.02/970,709.60 = 397,491.77/x
  3. Step 3: Cross multiply
    703,422.02x = 970,709.60 × 397,491.77
  4. Step 4: Simplify right side
    703,422.02x = 385,849,080,480.50
  5. Step 5: Solve for x
    x = 385,849,080,480.50/703,422.02
  6. Step 6: Final answer
    x = 548,531.42

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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.