Home / 1,992,896.40-2,989,344.60-1,355,167.20

Finding the Fourth Proportional to 1,992,896.40, 2,989,344.60 and 1,355,167.20

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Solution

The fourth proportional to 1,992,896.40, 2,989,344.60 and 1,355,167.20 is: 2,032,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,896.40 : 2,989,344.60 = 1,355,167.20 : x
  2. Step 2: Convert to fraction form
    1,992,896.40/2,989,344.60 = 1,355,167.20/x
  3. Step 3: Cross multiply
    1,992,896.40x = 2,989,344.60 × 1,355,167.20
  4. Step 4: Simplify right side
    1,992,896.40x = 4,051,061,751,417.12
  5. Step 5: Solve for x
    x = 4,051,061,751,417.12/1,992,896.40
  6. Step 6: Final answer
    x = 2,032,750.80

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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.