Home / 745,343.37-1,118,010.20-445,907.84

Finding the Fourth Proportional to 745,343.37, 1,118,010.20 and 445,907.84

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Solution

The fourth proportional to 745,343.37, 1,118,010.20 and 445,907.84 is: 668,858.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,343.37 : 1,118,010.20 = 445,907.84 : x
  2. Step 2: Convert to fraction form
    745,343.37/1,118,010.20 = 445,907.84/x
  3. Step 3: Cross multiply
    745,343.37x = 1,118,010.20 × 445,907.84
  4. Step 4: Simplify right side
    745,343.37x = 498,529,505,560.38
  5. Step 5: Solve for x
    x = 498,529,505,560.38/745,343.37
  6. Step 6: Final answer
    x = 668,858.84

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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.