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Finding the Fourth Proportional to 607,978.26, 912,065.39 and 187,253.94

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Solution

The fourth proportional to 607,978.26, 912,065.39 and 187,253.94 is: 280,911.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,978.26 : 912,065.39 = 187,253.94 : x
  2. Step 2: Convert to fraction form
    607,978.26/912,065.39 = 187,253.94/x
  3. Step 3: Cross multiply
    607,978.26x = 912,065.39 × 187,253.94
  4. Step 4: Simplify right side
    607,978.26x = 170,787,837,815.14
  5. Step 5: Solve for x
    x = 170,787,837,815.14/607,978.26
  6. Step 6: Final answer
    x = 280,911.09

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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.