Home / 1,320,442.70-1,978,367.70-609,011.60

Finding the Fourth Proportional to 1,320,442.70, 1,978,367.70 and 609,011.60

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Solution

The fourth proportional to 1,320,442.70, 1,978,367.70 and 609,011.60 is: 912,458.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,442.70 : 1,978,367.70 = 609,011.60 : x
  2. Step 2: Convert to fraction form
    1,320,442.70/1,978,367.70 = 609,011.60/x
  3. Step 3: Cross multiply
    1,320,442.70x = 1,978,367.70 × 609,011.60
  4. Step 4: Simplify right side
    1,320,442.70x = 1,204,848,878,365.32
  5. Step 5: Solve for x
    x = 1,204,848,878,365.32/1,320,442.70
  6. Step 6: Final answer
    x = 912,458.28

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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.