Home / 1,097,478.70-1,646,218.05-978,505.90

Finding the Fourth Proportional to 1,097,478.70, 1,646,218.05 and 978,505.90

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Solution

The fourth proportional to 1,097,478.70, 1,646,218.05 and 978,505.90 is: 1,467,758.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,478.70 : 1,646,218.05 = 978,505.90 : x
  2. Step 2: Convert to fraction form
    1,097,478.70/1,646,218.05 = 978,505.90/x
  3. Step 3: Cross multiply
    1,097,478.70x = 1,646,218.05 × 978,505.90
  4. Step 4: Simplify right side
    1,097,478.70x = 1,610,834,074,611.50
  5. Step 5: Solve for x
    x = 1,610,834,074,611.50/1,097,478.70
  6. Step 6: Final answer
    x = 1,467,758.85

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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.