Home / 991,446.48-1,368,085.10-561,634.56

Finding the Fourth Proportional to 991,446.48, 1,368,085.10 and 561,634.56

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Solution

The fourth proportional to 991,446.48, 1,368,085.10 and 561,634.56 is: 774,992.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,446.48 : 1,368,085.10 = 561,634.56 : x
  2. Step 2: Convert to fraction form
    991,446.48/1,368,085.10 = 561,634.56/x
  3. Step 3: Cross multiply
    991,446.48x = 1,368,085.10 × 561,634.56
  4. Step 4: Simplify right side
    991,446.48x = 768,363,870,372.88
  5. Step 5: Solve for x
    x = 768,363,870,372.88/991,446.48
  6. Step 6: Final answer
    x = 774,992.79

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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.