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Finding the Fourth Proportional to 558,086.40, 770,150.16 and 303,444

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Solution

The fourth proportional to 558,086.40, 770,150.16 and 303,444 is: 418,747.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,086.40 : 770,150.16 = 303,444 : x
  2. Step 2: Convert to fraction form
    558,086.40/770,150.16 = 303,444/x
  3. Step 3: Cross multiply
    558,086.40x = 770,150.16 × 303,444
  4. Step 4: Simplify right side
    558,086.40x = 233,697,445,151.04
  5. Step 5: Solve for x
    x = 233,697,445,151.04/558,086.40
  6. Step 6: Final answer
    x = 418,747.79

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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.