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Finding the Fourth Proportional to 703,635.95, 971,019.29 and 381,345.96

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Solution

The fourth proportional to 703,635.95, 971,019.29 and 381,345.96 is: 526,258.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,635.95 : 971,019.29 = 381,345.96 : x
  2. Step 2: Convert to fraction form
    703,635.95/971,019.29 = 381,345.96/x
  3. Step 3: Cross multiply
    703,635.95x = 971,019.29 × 381,345.96
  4. Step 4: Simplify right side
    703,635.95x = 370,294,281,416.84
  5. Step 5: Solve for x
    x = 370,294,281,416.84/703,635.95
  6. Step 6: Final answer
    x = 526,258.34

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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.