Home / 2,175,980.13-3,002,792.90-1,209,085.56

Finding the Fourth Proportional to 2,175,980.13, 3,002,792.90 and 1,209,085.56

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Solution

The fourth proportional to 2,175,980.13, 3,002,792.90 and 1,209,085.56 is: 1,668,504.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,175,980.13 : 3,002,792.90 = 1,209,085.56 : x
  2. Step 2: Convert to fraction form
    2,175,980.13/3,002,792.90 = 1,209,085.56/x
  3. Step 3: Cross multiply
    2,175,980.13x = 3,002,792.90 × 1,209,085.56
  4. Step 4: Simplify right side
    2,175,980.13x = 3,630,633,529,015.10
  5. Step 5: Solve for x
    x = 3,630,633,529,015.10/2,175,980.13
  6. Step 6: Final answer
    x = 1,668,504.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.