Home / 1,119,190.80-1,679,442.30-409,290.60

Finding the Fourth Proportional to 1,119,190.80, 1,679,442.30 and 409,290.60

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Solution

The fourth proportional to 1,119,190.80, 1,679,442.30 and 409,290.60 is: 614,175.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,190.80 : 1,679,442.30 = 409,290.60 : x
  2. Step 2: Convert to fraction form
    1,119,190.80/1,679,442.30 = 409,290.60/x
  3. Step 3: Cross multiply
    1,119,190.80x = 1,679,442.30 × 409,290.60
  4. Step 4: Simplify right side
    1,119,190.80x = 687,379,946,632.38
  5. Step 5: Solve for x
    x = 687,379,946,632.38/1,119,190.80
  6. Step 6: Final answer
    x = 614,175.84

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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.