Home / 1,411,638.88-2,116,928.40-512,858.56

Finding the Fourth Proportional to 1,411,638.88, 2,116,928.40 and 512,858.56

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Solution

The fourth proportional to 1,411,638.88, 2,116,928.40 and 512,858.56 is: 769,095.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,638.88 : 2,116,928.40 = 512,858.56 : x
  2. Step 2: Convert to fraction form
    1,411,638.88/2,116,928.40 = 512,858.56/x
  3. Step 3: Cross multiply
    1,411,638.88x = 2,116,928.40 × 512,858.56
  4. Step 4: Simplify right side
    1,411,638.88x = 1,085,684,850,847.10
  5. Step 5: Solve for x
    x = 1,085,684,850,847.10/1,411,638.88
  6. Step 6: Final answer
    x = 769,095.32

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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.