Home / 692,108.80-1,038,163.20-659,449.60

Finding the Fourth Proportional to 692,108.80, 1,038,163.20 and 659,449.60

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Solution

The fourth proportional to 692,108.80, 1,038,163.20 and 659,449.60 is: 989,174.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,108.80 : 1,038,163.20 = 659,449.60 : x
  2. Step 2: Convert to fraction form
    692,108.80/1,038,163.20 = 659,449.60/x
  3. Step 3: Cross multiply
    692,108.80x = 1,038,163.20 × 659,449.60
  4. Step 4: Simplify right side
    692,108.80x = 684,616,306,974.72
  5. Step 5: Solve for x
    x = 684,616,306,974.72/692,108.80
  6. Step 6: Final answer
    x = 989,174.40

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Similar ratio
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1.5x scale

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.