Home / 1,990,103.09-2,985,138.23-570,160.53

Finding the Fourth Proportional to 1,990,103.09, 2,985,138.23 and 570,160.53

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Solution

The fourth proportional to 1,990,103.09, 2,985,138.23 and 570,160.53 is: 855,236.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,103.09 : 2,985,138.23 = 570,160.53 : x
  2. Step 2: Convert to fraction form
    1,990,103.09/2,985,138.23 = 570,160.53/x
  3. Step 3: Cross multiply
    1,990,103.09x = 2,985,138.23 × 570,160.53
  4. Step 4: Simplify right side
    1,990,103.09x = 1,702,007,992,489.26
  5. Step 5: Solve for x
    x = 1,702,007,992,489.26/1,990,103.09
  6. Step 6: Final answer
    x = 855,236.10

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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.