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Finding the Fourth Proportional to 640,600.80, 960,463.80 and 303,802.80

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Solution

The fourth proportional to 640,600.80, 960,463.80 and 303,802.80 is: 455,496.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,600.80 : 960,463.80 = 303,802.80 : x
  2. Step 2: Convert to fraction form
    640,600.80/960,463.80 = 303,802.80/x
  3. Step 3: Cross multiply
    640,600.80x = 960,463.80 × 303,802.80
  4. Step 4: Simplify right side
    640,600.80x = 291,791,591,738.64
  5. Step 5: Solve for x
    x = 291,791,591,738.64/640,600.80
  6. Step 6: Final answer
    x = 455,496.76

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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.