Home / 991,552.48-1,368,231.15-561,740.56

Finding the Fourth Proportional to 991,552.48, 1,368,231.15 and 561,740.56

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Solution

The fourth proportional to 991,552.48, 1,368,231.15 and 561,740.56 is: 775,138.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,552.48 : 1,368,231.15 = 561,740.56 : x
  2. Step 2: Convert to fraction form
    991,552.48/1,368,231.15 = 561,740.56/x
  3. Step 3: Cross multiply
    991,552.48x = 1,368,231.15 × 561,740.56
  4. Step 4: Simplify right side
    991,552.48x = 768,590,932,410.44
  5. Step 5: Solve for x
    x = 768,590,932,410.44/991,552.48
  6. Step 6: Final answer
    x = 775,138.93

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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.