Home / 1,126,643.80-1,686,855.30-877,811.80

Finding the Fourth Proportional to 1,126,643.80, 1,686,855.30 and 877,811.80

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Solution

The fourth proportional to 1,126,643.80, 1,686,855.30 and 877,811.80 is: 1,314,294.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,643.80 : 1,686,855.30 = 877,811.80 : x
  2. Step 2: Convert to fraction form
    1,126,643.80/1,686,855.30 = 877,811.80/x
  3. Step 3: Cross multiply
    1,126,643.80x = 1,686,855.30 × 877,811.80
  4. Step 4: Simplify right side
    1,126,643.80x = 1,480,741,487,232.54
  5. Step 5: Solve for x
    x = 1,480,741,487,232.54/1,126,643.80
  6. Step 6: Final answer
    x = 1,314,294.27

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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.