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Finding the Fourth Proportional to 558,614, 770,880.84 and 303,960.80

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Solution

The fourth proportional to 558,614, 770,880.84 and 303,960.80 is: 419,462.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,614 : 770,880.84 = 303,960.80 : x
  2. Step 2: Convert to fraction form
    558,614/770,880.84 = 303,960.80/x
  3. Step 3: Cross multiply
    558,614x = 770,880.84 × 303,960.80
  4. Step 4: Simplify right side
    558,614x = 234,317,556,831.07
  5. Step 5: Solve for x
    x = 234,317,556,831.07/558,614
  6. Step 6: Final answer
    x = 419,462.38

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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.