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Finding the Fourth Proportional to 557,277.09, 769,277.80 and 376,234.24

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Solution

The fourth proportional to 557,277.09, 769,277.80 and 376,234.24 is: 519,362.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,277.09 : 769,277.80 = 376,234.24 : x
  2. Step 2: Convert to fraction form
    557,277.09/769,277.80 = 376,234.24/x
  3. Step 3: Cross multiply
    557,277.09x = 769,277.80 × 376,234.24
  4. Step 4: Simplify right side
    557,277.09x = 289,428,648,431.87
  5. Step 5: Solve for x
    x = 289,428,648,431.87/557,277.09
  6. Step 6: Final answer
    x = 519,362.19

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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.