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Finding the Fourth Proportional to 703,074.40, 970,302.36 and 397,206.88

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Solution

The fourth proportional to 703,074.40, 970,302.36 and 397,206.88 is: 548,179.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,074.40 : 970,302.36 = 397,206.88 : x
  2. Step 2: Convert to fraction form
    703,074.40/970,302.36 = 397,206.88/x
  3. Step 3: Cross multiply
    703,074.40x = 970,302.36 × 397,206.88
  4. Step 4: Simplify right side
    703,074.40x = 385,410,773,072.24
  5. Step 5: Solve for x
    x = 385,410,773,072.24/703,074.40
  6. Step 6: Final answer
    x = 548,179.22

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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.