Home / 991,450.26-1,368,090.24-561,638.34

Finding the Fourth Proportional to 991,450.26, 1,368,090.24 and 561,638.34

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Solution

The fourth proportional to 991,450.26, 1,368,090.24 and 561,638.34 is: 774,997.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,450.26 : 1,368,090.24 = 561,638.34 : x
  2. Step 2: Convert to fraction form
    991,450.26/1,368,090.24 = 561,638.34/x
  3. Step 3: Cross multiply
    991,450.26x = 1,368,090.24 × 561,638.34
  4. Step 4: Simplify right side
    991,450.26x = 768,371,931,363.80
  5. Step 5: Solve for x
    x = 768,371,931,363.80/991,450.26
  6. Step 6: Final answer
    x = 774,997.96

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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.