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Finding the Fourth Proportional to 557,757, 769,709.60 and 303,108.20

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Solution

The fourth proportional to 557,757, 769,709.60 and 303,108.20 is: 418,292.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,757 : 769,709.60 = 303,108.20 : x
  2. Step 2: Convert to fraction form
    557,757/769,709.60 = 303,108.20/x
  3. Step 3: Cross multiply
    557,757x = 769,709.60 × 303,108.20
  4. Step 4: Simplify right side
    557,757x = 233,305,291,378.72
  5. Step 5: Solve for x
    x = 233,305,291,378.72/557,757
  6. Step 6: Final answer
    x = 418,292.00

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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.