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Finding the Fourth Proportional to 628,370.88, 942,702.11 and 207,621.24

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Solution

The fourth proportional to 628,370.88, 942,702.11 and 207,621.24 is: 311,480.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,370.88 : 942,702.11 = 207,621.24 : x
  2. Step 2: Convert to fraction form
    628,370.88/942,702.11 = 207,621.24/x
  3. Step 3: Cross multiply
    628,370.88x = 942,702.11 × 207,621.24
  4. Step 4: Simplify right side
    628,370.88x = 195,724,981,028.82
  5. Step 5: Solve for x
    x = 195,724,981,028.82/628,370.88
  6. Step 6: Final answer
    x = 311,480.03

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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.