Home / 1,111,273.20-1,666,266.12-978,420.24

Finding the Fourth Proportional to 1,111,273.20, 1,666,266.12 and 978,420.24

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Solution

The fourth proportional to 1,111,273.20, 1,666,266.12 and 978,420.24 is: 1,467,063.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,273.20 : 1,666,266.12 = 978,420.24 : x
  2. Step 2: Convert to fraction form
    1,111,273.20/1,666,266.12 = 978,420.24/x
  3. Step 3: Cross multiply
    1,111,273.20x = 1,666,266.12 × 978,420.24
  4. Step 4: Simplify right side
    1,111,273.20x = 1,630,308,497,034.27
  5. Step 5: Solve for x
    x = 1,630,308,497,034.27/1,111,273.20
  6. Step 6: Final answer
    x = 1,467,063.63

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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.