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Finding the Fourth Proportional to 557,715.08, 769,645.32 and 303,066.32

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Solution

The fourth proportional to 557,715.08, 769,645.32 and 303,066.32 is: 418,230.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,715.08 : 769,645.32 = 303,066.32 : x
  2. Step 2: Convert to fraction form
    557,715.08/769,645.32 = 303,066.32/x
  3. Step 3: Cross multiply
    557,715.08x = 769,645.32 × 303,066.32
  4. Step 4: Simplify right side
    557,715.08x = 233,253,574,837.62
  5. Step 5: Solve for x
    x = 233,253,574,837.62/557,715.08
  6. Step 6: Final answer
    x = 418,230.71

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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.