Home / 1,119,940.60-1,680,129.60-445,907.20

Finding the Fourth Proportional to 1,119,940.60, 1,680,129.60 and 445,907.20

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Solution

The fourth proportional to 1,119,940.60, 1,680,129.60 and 445,907.20 is: 668,947.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,940.60 : 1,680,129.60 = 445,907.20 : x
  2. Step 2: Convert to fraction form
    1,119,940.60/1,680,129.60 = 445,907.20/x
  3. Step 3: Cross multiply
    1,119,940.60x = 1,680,129.60 × 445,907.20
  4. Step 4: Simplify right side
    1,119,940.60x = 749,181,885,573.12
  5. Step 5: Solve for x
    x = 749,181,885,573.12/1,119,940.60
  6. Step 6: Final answer
    x = 668,947.88

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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.