Home / 991,435.20-1,368,181.98-561,744.42

Finding the Fourth Proportional to 991,435.20, 1,368,181.98 and 561,744.42

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Solution

The fourth proportional to 991,435.20, 1,368,181.98 and 561,744.42 is: 775,208.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,435.20 : 1,368,181.98 = 561,744.42 : x
  2. Step 2: Convert to fraction form
    991,435.20/1,368,181.98 = 561,744.42/x
  3. Step 3: Cross multiply
    991,435.20x = 1,368,181.98 × 561,744.42
  4. Step 4: Simplify right side
    991,435.20x = 768,568,592,809.55
  5. Step 5: Solve for x
    x = 768,568,592,809.55/991,435.20
  6. Step 6: Final answer
    x = 775,208.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.