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Finding the Fourth Proportional to 703,000.22, 970,138.82 and 380,709.32

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Solution

The fourth proportional to 703,000.22, 970,138.82 and 380,709.32 is: 525,378.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,000.22 : 970,138.82 = 380,709.32 : x
  2. Step 2: Convert to fraction form
    703,000.22/970,138.82 = 380,709.32/x
  3. Step 3: Cross multiply
    703,000.22x = 970,138.82 × 380,709.32
  4. Step 4: Simplify right side
    703,000.22x = 369,340,883,713.56
  5. Step 5: Solve for x
    x = 369,340,883,713.56/703,000.22
  6. Step 6: Final answer
    x = 525,378.05

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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.