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Finding the Fourth Proportional to 703,257.30, 970,497.45 and 380,966.40

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Solution

The fourth proportional to 703,257.30, 970,497.45 and 380,966.40 is: 525,734.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,257.30 : 970,497.45 = 380,966.40 : x
  2. Step 2: Convert to fraction form
    703,257.30/970,497.45 = 380,966.40/x
  3. Step 3: Cross multiply
    703,257.30x = 970,497.45 × 380,966.40
  4. Step 4: Simplify right side
    703,257.30x = 369,726,919,735.68
  5. Step 5: Solve for x
    x = 369,726,919,735.68/703,257.30
  6. Step 6: Final answer
    x = 525,734.92

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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.