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Finding the Fourth Proportional to 557,775.24, 769,729.50 and 303,126.48

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Solution

The fourth proportional to 557,775.24, 769,729.50 and 303,126.48 is: 418,314.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,775.24 : 769,729.50 = 303,126.48 : x
  2. Step 2: Convert to fraction form
    557,775.24/769,729.50 = 303,126.48/x
  3. Step 3: Cross multiply
    557,775.24x = 769,729.50 × 303,126.48
  4. Step 4: Simplify right side
    557,775.24x = 233,325,393,887.16
  5. Step 5: Solve for x
    x = 233,325,393,887.16/557,775.24
  6. Step 6: Final answer
    x = 418,314.36

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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.