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Finding the Fourth Proportional to 558,321.10, 770,445.21 and 303,666.82

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Solution

The fourth proportional to 558,321.10, 770,445.21 and 303,666.82 is: 419,039.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,321.10 : 770,445.21 = 303,666.82 : x
  2. Step 2: Convert to fraction form
    558,321.10/770,445.21 = 303,666.82/x
  3. Step 3: Cross multiply
    558,321.10x = 770,445.21 × 303,666.82
  4. Step 4: Simplify right side
    558,321.10x = 233,958,646,904.93
  5. Step 5: Solve for x
    x = 233,958,646,904.93/558,321.10
  6. Step 6: Final answer
    x = 419,039.59

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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.