Home / 1,201,257.57-1,657,921.86-685,012.59

Finding the Fourth Proportional to 1,201,257.57, 1,657,921.86 and 685,012.59

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Solution

The fourth proportional to 1,201,257.57, 1,657,921.86 and 685,012.59 is: 945,423.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,257.57 : 1,657,921.86 = 685,012.59 : x
  2. Step 2: Convert to fraction form
    1,201,257.57/1,657,921.86 = 685,012.59/x
  3. Step 3: Cross multiply
    1,201,257.57x = 1,657,921.86 × 685,012.59
  4. Step 4: Simplify right side
    1,201,257.57x = 1,135,697,347,336.22
  5. Step 5: Solve for x
    x = 1,135,697,347,336.22/1,201,257.57
  6. Step 6: Final answer
    x = 945,423.68

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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.