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Finding the Fourth Proportional to 703,634.68, 971,019.26 and 381,344.69

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Solution

The fourth proportional to 703,634.68, 971,019.26 and 381,344.69 is: 526,257.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,634.68 : 971,019.26 = 381,344.69 : x
  2. Step 2: Convert to fraction form
    703,634.68/971,019.26 = 381,344.69/x
  3. Step 3: Cross multiply
    703,634.68x = 971,019.26 × 381,344.69
  4. Step 4: Simplify right side
    703,634.68x = 370,293,040,639.60
  5. Step 5: Solve for x
    x = 370,293,040,639.60/703,634.68
  6. Step 6: Final answer
    x = 526,257.52

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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.