Home / 1,989,732.36-2,745,051.21-1,224,457.32

Finding the Fourth Proportional to 1,989,732.36, 2,745,051.21 and 1,224,457.32

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Solution

The fourth proportional to 1,989,732.36, 2,745,051.21 and 1,224,457.32 is: 1,689,271.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,732.36 : 2,745,051.21 = 1,224,457.32 : x
  2. Step 2: Convert to fraction form
    1,989,732.36/2,745,051.21 = 1,224,457.32/x
  3. Step 3: Cross multiply
    1,989,732.36x = 2,745,051.21 × 1,224,457.32
  4. Step 4: Simplify right side
    1,989,732.36x = 3,361,198,047,859.36
  5. Step 5: Solve for x
    x = 3,361,198,047,859.36/1,989,732.36
  6. Step 6: Final answer
    x = 1,689,271.44

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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.