Home / 1,097,445.70-1,646,168.55-978,472.90

Finding the Fourth Proportional to 1,097,445.70, 1,646,168.55 and 978,472.90

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Solution

The fourth proportional to 1,097,445.70, 1,646,168.55 and 978,472.90 is: 1,467,709.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,445.70 : 1,646,168.55 = 978,472.90 : x
  2. Step 2: Convert to fraction form
    1,097,445.70/1,646,168.55 = 978,472.90/x
  3. Step 3: Cross multiply
    1,097,445.70x = 1,646,168.55 × 978,472.90
  4. Step 4: Simplify right side
    1,097,445.70x = 1,610,731,315,007.30
  5. Step 5: Solve for x
    x = 1,610,731,315,007.30/1,097,445.70
  6. Step 6: Final answer
    x = 1,467,709.35

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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.