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Finding the Fourth Proportional to 645,523.20, 967,593.60 and 290,476.80

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Solution

The fourth proportional to 645,523.20, 967,593.60 and 290,476.80 is: 435,404.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,523.20 : 967,593.60 = 290,476.80 : x
  2. Step 2: Convert to fraction form
    645,523.20/967,593.60 = 290,476.80/x
  3. Step 3: Cross multiply
    645,523.20x = 967,593.60 × 290,476.80
  4. Step 4: Simplify right side
    645,523.20x = 281,063,492,628.48
  5. Step 5: Solve for x
    x = 281,063,492,628.48/645,523.20
  6. Step 6: Final answer
    x = 435,404.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.