Home / 1,989,912.16-2,745,281.44-1,254,624.65

Finding the Fourth Proportional to 1,989,912.16, 2,745,281.44 and 1,254,624.65

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Solution

The fourth proportional to 1,989,912.16, 2,745,281.44 and 1,254,624.65 is: 1,730,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,912.16 : 2,745,281.44 = 1,254,624.65 : x
  2. Step 2: Convert to fraction form
    1,989,912.16/2,745,281.44 = 1,254,624.65/x
  3. Step 3: Cross multiply
    1,989,912.16x = 2,745,281.44 × 1,254,624.65
  4. Step 4: Simplify right side
    1,989,912.16x = 3,444,297,765,811.50
  5. Step 5: Solve for x
    x = 3,444,297,765,811.50/1,989,912.16
  6. Step 6: Final answer
    x = 1,730,879.30

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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.