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Finding the Fourth Proportional to 703,032.20, 970,179.56 and 380,734.92

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Solution

The fourth proportional to 703,032.20, 970,179.56 and 380,734.92 is: 525,411.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,032.20 : 970,179.56 = 380,734.92 : x
  2. Step 2: Convert to fraction form
    703,032.20/970,179.56 = 380,734.92/x
  3. Step 3: Cross multiply
    703,032.20x = 970,179.56 × 380,734.92
  4. Step 4: Simplify right side
    703,032.20x = 369,381,237,162.24
  5. Step 5: Solve for x
    x = 369,381,237,162.24/703,032.20
  6. Step 6: Final answer
    x = 525,411.55

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Double scale
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Similar ratio
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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.