Home / 1,200,010.20-1,795,349.70-780,106.20

Finding the Fourth Proportional to 1,200,010.20, 1,795,349.70 and 780,106.20

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Solution

The fourth proportional to 1,200,010.20, 1,795,349.70 and 780,106.20 is: 1,167,126.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,010.20 : 1,795,349.70 = 780,106.20 : x
  2. Step 2: Convert to fraction form
    1,200,010.20/1,795,349.70 = 780,106.20/x
  3. Step 3: Cross multiply
    1,200,010.20x = 1,795,349.70 × 780,106.20
  4. Step 4: Simplify right side
    1,200,010.20x = 1,400,563,432,138.14
  5. Step 5: Solve for x
    x = 1,400,563,432,138.14/1,200,010.20
  6. Step 6: Final answer
    x = 1,167,126.27

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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.