Home / 1,292,605.20-1,938,907.80-1,180,630.80

Finding the Fourth Proportional to 1,292,605.20, 1,938,907.80 and 1,180,630.80

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Solution

The fourth proportional to 1,292,605.20, 1,938,907.80 and 1,180,630.80 is: 1,770,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,605.20 : 1,938,907.80 = 1,180,630.80 : x
  2. Step 2: Convert to fraction form
    1,292,605.20/1,938,907.80 = 1,180,630.80/x
  3. Step 3: Cross multiply
    1,292,605.20x = 1,938,907.80 × 1,180,630.80
  4. Step 4: Simplify right side
    1,292,605.20x = 2,289,134,267,040.24
  5. Step 5: Solve for x
    x = 2,289,134,267,040.24/1,292,605.20
  6. Step 6: Final answer
    x = 1,770,946.20

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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.