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Finding the Fourth Proportional to 703,190.97, 970,404.71 and 380,903.72

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Solution

The fourth proportional to 703,190.97, 970,404.71 and 380,903.72 is: 525,647.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,190.97 : 970,404.71 = 380,903.72 : x
  2. Step 2: Convert to fraction form
    703,190.97/970,404.71 = 380,903.72/x
  3. Step 3: Cross multiply
    703,190.97x = 970,404.71 × 380,903.72
  4. Step 4: Simplify right side
    703,190.97x = 369,630,757,187.98
  5. Step 5: Solve for x
    x = 369,630,757,187.98/703,190.97
  6. Step 6: Final answer
    x = 525,647.76

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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.