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Finding the Fourth Proportional to 703,598.20, 970,966.31 and 381,308.31

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Solution

The fourth proportional to 703,598.20, 970,966.31 and 381,308.31 is: 526,205.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,598.20 : 970,966.31 = 381,308.31 : x
  2. Step 2: Convert to fraction form
    703,598.20/970,966.31 = 381,308.31/x
  3. Step 3: Cross multiply
    703,598.20x = 970,966.31 × 381,308.31
  4. Step 4: Simplify right side
    703,598.20x = 370,237,520,826.50
  5. Step 5: Solve for x
    x = 370,237,520,826.50/703,598.20
  6. Step 6: Final answer
    x = 526,205.90

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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.