Home / 986,968.50-1,480,505.37-313,103.68

Finding the Fourth Proportional to 986,968.50, 1,480,505.37 and 313,103.68

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Solution

The fourth proportional to 986,968.50, 1,480,505.37 and 313,103.68 is: 469,672.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,968.50 : 1,480,505.37 = 313,103.68 : x
  2. Step 2: Convert to fraction form
    986,968.50/1,480,505.37 = 313,103.68/x
  3. Step 3: Cross multiply
    986,968.50x = 1,480,505.37 × 313,103.68
  4. Step 4: Simplify right side
    986,968.50x = 463,551,675,611.96
  5. Step 5: Solve for x
    x = 463,551,675,611.96/986,968.50
  6. Step 6: Final answer
    x = 469,672.21

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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.