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Finding the Fourth Proportional to 557,521.74, 835,017.72 and 355,118.94

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Solution

The fourth proportional to 557,521.74, 835,017.72 and 355,118.94 is: 531,872.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,521.74 : 835,017.72 = 355,118.94 : x
  2. Step 2: Convert to fraction form
    557,521.74/835,017.72 = 355,118.94/x
  3. Step 3: Cross multiply
    557,521.74x = 835,017.72 × 355,118.94
  4. Step 4: Simplify right side
    557,521.74x = 296,530,607,607.62
  5. Step 5: Solve for x
    x = 296,530,607,607.62/557,521.74
  6. Step 6: Final answer
    x = 531,872.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.