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Finding the Fourth Proportional to 557,438.40, 769,584.18 and 367,005.39

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Solution

The fourth proportional to 557,438.40, 769,584.18 and 367,005.39 is: 506,677.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,438.40 : 769,584.18 = 367,005.39 : x
  2. Step 2: Convert to fraction form
    557,438.40/769,584.18 = 367,005.39/x
  3. Step 3: Cross multiply
    557,438.40x = 769,584.18 × 367,005.39
  4. Step 4: Simplify right side
    557,438.40x = 282,441,542,118.73
  5. Step 5: Solve for x
    x = 282,441,542,118.73/557,438.40
  6. Step 6: Final answer
    x = 506,677.58

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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.