Home / 1,368,530.20-2,052,600.90-421,996.60

Finding the Fourth Proportional to 1,368,530.20, 2,052,600.90 and 421,996.60

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Solution

The fourth proportional to 1,368,530.20, 2,052,600.90 and 421,996.60 is: 632,934.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,530.20 : 2,052,600.90 = 421,996.60 : x
  2. Step 2: Convert to fraction form
    1,368,530.20/2,052,600.90 = 421,996.60/x
  3. Step 3: Cross multiply
    1,368,530.20x = 2,052,600.90 × 421,996.60
  4. Step 4: Simplify right side
    1,368,530.20x = 866,190,600,956.94
  5. Step 5: Solve for x
    x = 866,190,600,956.94/1,368,530.20
  6. Step 6: Final answer
    x = 632,934.96

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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.