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Finding the Fourth Proportional to 703,612.07, 970,988.10 and 381,322.15

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Solution

The fourth proportional to 703,612.07, 970,988.10 and 381,322.15 is: 526,226.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,612.07 : 970,988.10 = 381,322.15 : x
  2. Step 2: Convert to fraction form
    703,612.07/970,988.10 = 381,322.15/x
  3. Step 3: Cross multiply
    703,612.07x = 970,988.10 × 381,322.15
  4. Step 4: Simplify right side
    703,612.07x = 370,259,269,916.42
  5. Step 5: Solve for x
    x = 370,259,269,916.42/703,612.07
  6. Step 6: Final answer
    x = 526,226.43

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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.