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Finding the Fourth Proportional to 703,151.91, 970,341.16 and 427,418.43

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Solution

The fourth proportional to 703,151.91, 970,341.16 and 427,418.43 is: 589,832.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,151.91 : 970,341.16 = 427,418.43 : x
  2. Step 2: Convert to fraction form
    703,151.91/970,341.16 = 427,418.43/x
  3. Step 3: Cross multiply
    703,151.91x = 970,341.16 × 427,418.43
  4. Step 4: Simplify right side
    703,151.91x = 414,741,695,171.58
  5. Step 5: Solve for x
    x = 414,741,695,171.58/703,151.91
  6. Step 6: Final answer
    x = 589,832.28

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Double scale
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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.