Home / 991,349.33-1,368,057.29-561,628.44

Finding the Fourth Proportional to 991,349.33, 1,368,057.29 and 561,628.44

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Solution

The fourth proportional to 991,349.33, 1,368,057.29 and 561,628.44 is: 775,044.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,349.33 : 1,368,057.29 = 561,628.44 : x
  2. Step 2: Convert to fraction form
    991,349.33/1,368,057.29 = 561,628.44/x
  3. Step 3: Cross multiply
    991,349.33x = 1,368,057.29 × 561,628.44
  4. Step 4: Simplify right side
    991,349.33x = 768,339,878,805.19
  5. Step 5: Solve for x
    x = 768,339,878,805.19/991,349.33
  6. Step 6: Final answer
    x = 775,044.54

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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.