Home / 1,097,485.70-1,646,228.55-978,512.90

Finding the Fourth Proportional to 1,097,485.70, 1,646,228.55 and 978,512.90

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Solution

The fourth proportional to 1,097,485.70, 1,646,228.55 and 978,512.90 is: 1,467,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,485.70 : 1,646,228.55 = 978,512.90 : x
  2. Step 2: Convert to fraction form
    1,097,485.70/1,646,228.55 = 978,512.90/x
  3. Step 3: Cross multiply
    1,097,485.70x = 1,646,228.55 × 978,512.90
  4. Step 4: Simplify right side
    1,097,485.70x = 1,610,855,872,523.30
  5. Step 5: Solve for x
    x = 1,610,855,872,523.30/1,097,485.70
  6. Step 6: Final answer
    x = 1,467,769.35

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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.