Home / 683,704.80-1,026,480.60-399,686.40

Finding the Fourth Proportional to 683,704.80, 1,026,480.60 and 399,686.40

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Solution

The fourth proportional to 683,704.80, 1,026,480.60 and 399,686.40 is: 600,069.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,704.80 : 1,026,480.60 = 399,686.40 : x
  2. Step 2: Convert to fraction form
    683,704.80/1,026,480.60 = 399,686.40/x
  3. Step 3: Cross multiply
    683,704.80x = 1,026,480.60 × 399,686.40
  4. Step 4: Simplify right side
    683,704.80x = 410,270,335,683.84
  5. Step 5: Solve for x
    x = 410,270,335,683.84/683,704.80
  6. Step 6: Final answer
    x = 600,069.41

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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.