Home / 1,269,418.30-1,902,913.80-470,485.60

Finding the Fourth Proportional to 1,269,418.30, 1,902,913.80 and 470,485.60

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Solution

The fourth proportional to 1,269,418.30, 1,902,913.80 and 470,485.60 is: 705,278.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,418.30 : 1,902,913.80 = 470,485.60 : x
  2. Step 2: Convert to fraction form
    1,269,418.30/1,902,913.80 = 470,485.60/x
  3. Step 3: Cross multiply
    1,269,418.30x = 1,902,913.80 × 470,485.60
  4. Step 4: Simplify right side
    1,269,418.30x = 895,293,540,941.28
  5. Step 5: Solve for x
    x = 895,293,540,941.28/1,269,418.30
  6. Step 6: Final answer
    x = 705,278.58

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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.