Home / 1,261,838.87-1,741,271.77-688,768.32

Finding the Fourth Proportional to 1,261,838.87, 1,741,271.77 and 688,768.32

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Solution

The fourth proportional to 1,261,838.87, 1,741,271.77 and 688,768.32 is: 950,464.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,838.87 : 1,741,271.77 = 688,768.32 : x
  2. Step 2: Convert to fraction form
    1,261,838.87/1,741,271.77 = 688,768.32/x
  3. Step 3: Cross multiply
    1,261,838.87x = 1,741,271.77 × 688,768.32
  4. Step 4: Simplify right side
    1,261,838.87x = 1,199,332,830,305.41
  5. Step 5: Solve for x
    x = 1,199,332,830,305.41/1,261,838.87
  6. Step 6: Final answer
    x = 950,464.33

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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.