Home / 1,122,771.57-1,549,423.23-639,336.71

Finding the Fourth Proportional to 1,122,771.57, 1,549,423.23 and 639,336.71

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Solution

The fourth proportional to 1,122,771.57, 1,549,423.23 and 639,336.71 is: 882,283.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,122,771.57 : 1,549,423.23 = 639,336.71 : x
  2. Step 2: Convert to fraction form
    1,122,771.57/1,549,423.23 = 639,336.71/x
  3. Step 3: Cross multiply
    1,122,771.57x = 1,549,423.23 × 639,336.71
  4. Step 4: Simplify right side
    1,122,771.57x = 990,603,150,265.77
  5. Step 5: Solve for x
    x = 990,603,150,265.77/1,122,771.57
  6. Step 6: Final answer
    x = 882,283.78

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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.