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Finding the Fourth Proportional to 557,997.84, 770,007.60 and 303,347.88

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Solution

The fourth proportional to 557,997.84, 770,007.60 and 303,347.88 is: 418,604.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,997.84 : 770,007.60 = 303,347.88 : x
  2. Step 2: Convert to fraction form
    557,997.84/770,007.60 = 303,347.88/x
  3. Step 3: Cross multiply
    557,997.84x = 770,007.60 × 303,347.88
  4. Step 4: Simplify right side
    557,997.84x = 233,580,173,043.89
  5. Step 5: Solve for x
    x = 233,580,173,043.89/557,997.84
  6. Step 6: Final answer
    x = 418,604.08

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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.