Home / 988,923.40-1,483,385.10-978,425.80

Finding the Fourth Proportional to 988,923.40, 1,483,385.10 and 978,425.80

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Solution

The fourth proportional to 988,923.40, 1,483,385.10 and 978,425.80 is: 1,467,638.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,923.40 : 1,483,385.10 = 978,425.80 : x
  2. Step 2: Convert to fraction form
    988,923.40/1,483,385.10 = 978,425.80/x
  3. Step 3: Cross multiply
    988,923.40x = 1,483,385.10 × 978,425.80
  4. Step 4: Simplify right side
    988,923.40x = 1,451,382,253,175.58
  5. Step 5: Solve for x
    x = 1,451,382,253,175.58/988,923.40
  6. Step 6: Final answer
    x = 1,467,638.70

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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.