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Finding the Fourth Proportional to 703,230.85, 970,614.70 and 427,530.12

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Solution

The fourth proportional to 703,230.85, 970,614.70 and 427,530.12 is: 590,086.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,230.85 : 970,614.70 = 427,530.12 : x
  2. Step 2: Convert to fraction form
    703,230.85/970,614.70 = 427,530.12/x
  3. Step 3: Cross multiply
    703,230.85x = 970,614.70 × 427,530.12
  4. Step 4: Simplify right side
    703,230.85x = 414,967,019,164.76
  5. Step 5: Solve for x
    x = 414,967,019,164.76/703,230.85
  6. Step 6: Final answer
    x = 590,086.48

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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.