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Finding the Fourth Proportional to 557,804.64, 769,766.16 and 303,157.65

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Solution

The fourth proportional to 557,804.64, 769,766.16 and 303,157.65 is: 418,355.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,804.64 : 769,766.16 = 303,157.65 : x
  2. Step 2: Convert to fraction form
    557,804.64/769,766.16 = 303,157.65/x
  3. Step 3: Cross multiply
    557,804.64x = 769,766.16 × 303,157.65
  4. Step 4: Simplify right side
    557,804.64x = 233,360,500,115.12
  5. Step 5: Solve for x
    x = 233,360,500,115.12/557,804.64
  6. Step 6: Final answer
    x = 418,355.25

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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.