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Finding the Fourth Proportional to 703,195.47, 970,410.92 and 380,908.22

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Solution

The fourth proportional to 703,195.47, 970,410.92 and 380,908.22 is: 525,653.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,195.47 : 970,410.92 = 380,908.22 : x
  2. Step 2: Convert to fraction form
    703,195.47/970,410.92 = 380,908.22/x
  3. Step 3: Cross multiply
    703,195.47x = 970,410.92 × 380,908.22
  4. Step 4: Simplify right side
    703,195.47x = 369,637,489,449.17
  5. Step 5: Solve for x
    x = 369,637,489,449.17/703,195.47
  6. Step 6: Final answer
    x = 525,653.97

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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.