Home / 1,131,476.40-1,561,213.80-634,776.84

Finding the Fourth Proportional to 1,131,476.40, 1,561,213.80 and 634,776.84

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Solution

The fourth proportional to 1,131,476.40, 1,561,213.80 and 634,776.84 is: 875,866.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,476.40 : 1,561,213.80 = 634,776.84 : x
  2. Step 2: Convert to fraction form
    1,131,476.40/1,561,213.80 = 634,776.84/x
  3. Step 3: Cross multiply
    1,131,476.40x = 1,561,213.80 × 634,776.84
  4. Step 4: Simplify right side
    1,131,476.40x = 991,022,362,528.39
  5. Step 5: Solve for x
    x = 991,022,362,528.39/1,131,476.40
  6. Step 6: Final answer
    x = 875,866.58

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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.