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Finding the Fourth Proportional to 703,449.30, 970,760.90 and 381,159.14

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Solution

The fourth proportional to 703,449.30, 970,760.90 and 381,159.14 is: 526,000.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,449.30 : 970,760.90 = 381,159.14 : x
  2. Step 2: Convert to fraction form
    703,449.30/970,760.90 = 381,159.14/x
  3. Step 3: Cross multiply
    703,449.30x = 970,760.90 × 381,159.14
  4. Step 4: Simplify right side
    703,449.30x = 370,014,389,789.63
  5. Step 5: Solve for x
    x = 370,014,389,789.63/703,449.30
  6. Step 6: Final answer
    x = 526,000.08

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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.