Home / 460,647.42-635,355.07-305,317.80

Finding the Fourth Proportional to 460,647.42, 635,355.07 and 305,317.80

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Solution

The fourth proportional to 460,647.42, 635,355.07 and 305,317.80 is: 421,114.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,647.42 : 635,355.07 = 305,317.80 : x
  2. Step 2: Convert to fraction form
    460,647.42/635,355.07 = 305,317.80/x
  3. Step 3: Cross multiply
    460,647.42x = 635,355.07 × 305,317.80
  4. Step 4: Simplify right side
    460,647.42x = 193,985,211,427.95
  5. Step 5: Solve for x
    x = 193,985,211,427.95/460,647.42
  6. Step 6: Final answer
    x = 421,114.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.