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Finding the Fourth Proportional to 557,252.25, 769,001.31 and 302,605.26

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Solution

The fourth proportional to 557,252.25, 769,001.31 and 302,605.26 is: 417,591.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,252.25 : 769,001.31 = 302,605.26 : x
  2. Step 2: Convert to fraction form
    557,252.25/769,001.31 = 302,605.26/x
  3. Step 3: Cross multiply
    557,252.25x = 769,001.31 × 302,605.26
  4. Step 4: Simplify right side
    557,252.25x = 232,703,841,352.89
  5. Step 5: Solve for x
    x = 232,703,841,352.89/557,252.25
  6. Step 6: Final answer
    x = 417,591.57

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Double scale
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Similar ratio
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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.