Home / 644,577.20-967,011.60-378,200.60

Finding the Fourth Proportional to 644,577.20, 967,011.60 and 378,200.60

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Solution

The fourth proportional to 644,577.20, 967,011.60 and 378,200.60 is: 567,386.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,577.20 : 967,011.60 = 378,200.60 : x
  2. Step 2: Convert to fraction form
    644,577.20/967,011.60 = 378,200.60/x
  3. Step 3: Cross multiply
    644,577.20x = 967,011.60 × 378,200.60
  4. Step 4: Simplify right side
    644,577.20x = 365,724,367,326.96
  5. Step 5: Solve for x
    x = 365,724,367,326.96/644,577.20
  6. Step 6: Final answer
    x = 567,386.45

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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.