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Finding the Fourth Proportional to 455,545.44, 683,320.59 and 298,766.70

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Solution

The fourth proportional to 455,545.44, 683,320.59 and 298,766.70 is: 448,151.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,545.44 : 683,320.59 = 298,766.70 : x
  2. Step 2: Convert to fraction form
    455,545.44/683,320.59 = 298,766.70/x
  3. Step 3: Cross multiply
    455,545.44x = 683,320.59 × 298,766.70
  4. Step 4: Simplify right side
    455,545.44x = 204,153,437,716.35
  5. Step 5: Solve for x
    x = 204,153,437,716.35/455,545.44
  6. Step 6: Final answer
    x = 448,151.64

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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.