Home / 990,120.69-1,483,598.97-634,840.11

Finding the Fourth Proportional to 990,120.69, 1,483,598.97 and 634,840.11

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Solution

The fourth proportional to 990,120.69, 1,483,598.97 and 634,840.11 is: 951,245.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,120.69 : 1,483,598.97 = 634,840.11 : x
  2. Step 2: Convert to fraction form
    990,120.69/1,483,598.97 = 634,840.11/x
  3. Step 3: Cross multiply
    990,120.69x = 1,483,598.97 × 634,840.11
  4. Step 4: Simplify right side
    990,120.69x = 941,848,133,310.69
  5. Step 5: Solve for x
    x = 941,848,133,310.69/990,120.69
  6. Step 6: Final answer
    x = 951,245.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.