Home / 786,604.80-1,180,157.04-331,436.64

Finding the Fourth Proportional to 786,604.80, 1,180,157.04 and 331,436.64

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Solution

The fourth proportional to 786,604.80, 1,180,157.04 and 331,436.64 is: 497,260.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,604.80 : 1,180,157.04 = 331,436.64 : x
  2. Step 2: Convert to fraction form
    786,604.80/1,180,157.04 = 331,436.64/x
  3. Step 3: Cross multiply
    786,604.80x = 1,180,157.04 × 331,436.64
  4. Step 4: Simplify right side
    786,604.80x = 391,147,284,009.95
  5. Step 5: Solve for x
    x = 391,147,284,009.95/786,604.80
  6. Step 6: Final answer
    x = 497,260.23

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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.