Home / 740,517.09-1,110,813.68-208,079.64

Finding the Fourth Proportional to 740,517.09, 1,110,813.68 and 208,079.64

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Solution

The fourth proportional to 740,517.09, 1,110,813.68 and 208,079.64 is: 312,130.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,517.09 : 1,110,813.68 = 208,079.64 : x
  2. Step 2: Convert to fraction form
    740,517.09/1,110,813.68 = 208,079.64/x
  3. Step 3: Cross multiply
    740,517.09x = 1,110,813.68 × 208,079.64
  4. Step 4: Simplify right side
    740,517.09x = 231,137,709,601.08
  5. Step 5: Solve for x
    x = 231,137,709,601.08/740,517.09
  6. Step 6: Final answer
    x = 312,130.15

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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.