Home / 1,097,472.70-1,646,209.05-978,499.90

Finding the Fourth Proportional to 1,097,472.70, 1,646,209.05 and 978,499.90

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Solution

The fourth proportional to 1,097,472.70, 1,646,209.05 and 978,499.90 is: 1,467,749.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,097,472.70 : 1,646,209.05 = 978,499.90 : x
  2. Step 2: Convert to fraction form
    1,097,472.70/1,646,209.05 = 978,499.90/x
  3. Step 3: Cross multiply
    1,097,472.70x = 1,646,209.05 × 978,499.90
  4. Step 4: Simplify right side
    1,097,472.70x = 1,610,815,390,804.10
  5. Step 5: Solve for x
    x = 1,610,815,390,804.10/1,097,472.70
  6. Step 6: Final answer
    x = 1,467,749.85

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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.