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Finding the Fourth Proportional to 557,473.35, 769,300.28 and 324,885.39

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Solution

The fourth proportional to 557,473.35, 769,300.28 and 324,885.39 is: 448,334.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,473.35 : 769,300.28 = 324,885.39 : x
  2. Step 2: Convert to fraction form
    557,473.35/769,300.28 = 324,885.39/x
  3. Step 3: Cross multiply
    557,473.35x = 769,300.28 × 324,885.39
  4. Step 4: Simplify right side
    557,473.35x = 249,934,419,870.48
  5. Step 5: Solve for x
    x = 249,934,419,870.48/557,473.35
  6. Step 6: Final answer
    x = 448,334.29

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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.