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Finding the Fourth Proportional to 632,119.98, 872,325.54 and 345,640.26

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Solution

The fourth proportional to 632,119.98, 872,325.54 and 345,640.26 is: 476,983.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,119.98 : 872,325.54 = 345,640.26 : x
  2. Step 2: Convert to fraction form
    632,119.98/872,325.54 = 345,640.26/x
  3. Step 3: Cross multiply
    632,119.98x = 872,325.54 × 345,640.26
  4. Step 4: Simplify right side
    632,119.98x = 301,510,826,450.24
  5. Step 5: Solve for x
    x = 301,510,826,450.24/632,119.98
  6. Step 6: Final answer
    x = 476,983.54

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1.5x scale

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.