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Finding the Fourth Proportional to 607,803.56, 911,717.07 and 187,079

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Solution

The fourth proportional to 607,803.56, 911,717.07 and 187,079 is: 280,622.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,803.56 : 911,717.07 = 187,079 : x
  2. Step 2: Convert to fraction form
    607,803.56/911,717.07 = 187,079/x
  3. Step 3: Cross multiply
    607,803.56x = 911,717.07 × 187,079
  4. Step 4: Simplify right side
    607,803.56x = 170,563,117,738.53
  5. Step 5: Solve for x
    x = 170,563,117,738.53/607,803.56
  6. Step 6: Final answer
    x = 280,622.11

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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.