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Finding the Fourth Proportional to 703,265.09, 970,504.34 and 380,983.10

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Solution

The fourth proportional to 703,265.09, 970,504.34 and 380,983.10 is: 525,755.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,265.09 : 970,504.34 = 380,983.10 : x
  2. Step 2: Convert to fraction form
    703,265.09/970,504.34 = 380,983.10/x
  3. Step 3: Cross multiply
    703,265.09x = 970,504.34 × 380,983.10
  4. Step 4: Simplify right side
    703,265.09x = 369,745,745,259.22
  5. Step 5: Solve for x
    x = 369,745,745,259.22/703,265.09
  6. Step 6: Final answer
    x = 525,755.87

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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.