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Finding the Fourth Proportional to 607,804.06, 911,717.82 and 187,079.50

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Solution

The fourth proportional to 607,804.06, 911,717.82 and 187,079.50 is: 280,622.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,804.06 : 911,717.82 = 187,079.50 : x
  2. Step 2: Convert to fraction form
    607,804.06/911,717.82 = 187,079.50/x
  3. Step 3: Cross multiply
    607,804.06x = 911,717.82 × 187,079.50
  4. Step 4: Simplify right side
    607,804.06x = 170,563,713,906.69
  5. Step 5: Solve for x
    x = 170,563,713,906.69/607,804.06
  6. Step 6: Final answer
    x = 280,622.86

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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.