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Finding the Fourth Proportional to 703,109.88, 970,291.26 and 380,819.88

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Solution

The fourth proportional to 703,109.88, 970,291.26 and 380,819.88 is: 525,531.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,109.88 : 970,291.26 = 380,819.88 : x
  2. Step 2: Convert to fraction form
    703,109.88/970,291.26 = 380,819.88/x
  3. Step 3: Cross multiply
    703,109.88x = 970,291.26 × 380,819.88
  4. Step 4: Simplify right side
    703,109.88x = 369,506,201,198.25
  5. Step 5: Solve for x
    x = 369,506,201,198.25/703,109.88
  6. Step 6: Final answer
    x = 525,531.23

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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.