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Finding the Fourth Proportional to 558,400.49, 770,589.20 and 303,752.69

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Solution

The fourth proportional to 558,400.49, 770,589.20 and 303,752.69 is: 419,176.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,400.49 : 770,589.20 = 303,752.69 : x
  2. Step 2: Convert to fraction form
    558,400.49/770,589.20 = 303,752.69/x
  3. Step 3: Cross multiply
    558,400.49x = 770,589.20 × 303,752.69
  4. Step 4: Simplify right side
    558,400.49x = 234,068,539,291.38
  5. Step 5: Solve for x
    x = 234,068,539,291.38/558,400.49
  6. Step 6: Final answer
    x = 419,176.82

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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.