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Finding the Fourth Proportional to 703,404.84, 970,639.56 and 397,507.80

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Solution

The fourth proportional to 703,404.84, 970,639.56 and 397,507.80 is: 548,527.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,404.84 : 970,639.56 = 397,507.80 : x
  2. Step 2: Convert to fraction form
    703,404.84/970,639.56 = 397,507.80/x
  3. Step 3: Cross multiply
    703,404.84x = 970,639.56 × 397,507.80
  4. Step 4: Simplify right side
    703,404.84x = 385,836,796,088.57
  5. Step 5: Solve for x
    x = 385,836,796,088.57/703,404.84
  6. Step 6: Final answer
    x = 548,527.35

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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.