Home / 991,297.48-1,367,945.94-561,568.84

Finding the Fourth Proportional to 991,297.48, 1,367,945.94 and 561,568.84

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Solution

The fourth proportional to 991,297.48, 1,367,945.94 and 561,568.84 is: 774,939.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,297.48 : 1,367,945.94 = 561,568.84 : x
  2. Step 2: Convert to fraction form
    991,297.48/1,367,945.94 = 561,568.84/x
  3. Step 3: Cross multiply
    991,297.48x = 1,367,945.94 × 561,568.84
  4. Step 4: Simplify right side
    991,297.48x = 768,195,814,708.51
  5. Step 5: Solve for x
    x = 768,195,814,708.51/991,297.48
  6. Step 6: Final answer
    x = 774,939.74

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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.