Home / 2,129,738.90-3,195,541.46-1,118,626.83

Finding the Fourth Proportional to 2,129,738.90, 3,195,541.46 and 1,118,626.83

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Solution

The fourth proportional to 2,129,738.90, 3,195,541.46 and 1,118,626.83 is: 1,678,430.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,738.90 : 3,195,541.46 = 1,118,626.83 : x
  2. Step 2: Convert to fraction form
    2,129,738.90/3,195,541.46 = 1,118,626.83/x
  3. Step 3: Cross multiply
    2,129,738.90x = 3,195,541.46 × 1,118,626.83
  4. Step 4: Simplify right side
    2,129,738.90x = 3,574,618,416,329.94
  5. Step 5: Solve for x
    x = 3,574,618,416,329.94/2,129,738.90
  6. Step 6: Final answer
    x = 1,678,430.36

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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.