Home / 1,122,941.21-1,549,934.25-639,791.24

Finding the Fourth Proportional to 1,122,941.21, 1,549,934.25 and 639,791.24

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Solution

The fourth proportional to 1,122,941.21, 1,549,934.25 and 639,791.24 is: 883,068.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,941.21 : 1,549,934.25 = 639,791.24 : x
  2. Step 2: Convert to fraction form
    1,122,941.21/1,549,934.25 = 639,791.24/x
  3. Step 3: Cross multiply
    1,122,941.21x = 1,549,934.25 × 639,791.24
  4. Step 4: Simplify right side
    1,122,941.21x = 991,634,355,725.97
  5. Step 5: Solve for x
    x = 991,634,355,725.97/1,122,941.21
  6. Step 6: Final answer
    x = 883,068.81

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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.