Home / 990,756.30-1,485,665.94-383,828.88

Finding the Fourth Proportional to 990,756.30, 1,485,665.94 and 383,828.88

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Solution

The fourth proportional to 990,756.30, 1,485,665.94 and 383,828.88 is: 575,561.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,756.30 : 1,485,665.94 = 383,828.88 : x
  2. Step 2: Convert to fraction form
    990,756.30/1,485,665.94 = 383,828.88/x
  3. Step 3: Cross multiply
    990,756.30x = 1,485,665.94 × 383,828.88
  4. Step 4: Simplify right side
    990,756.30x = 570,241,493,804.35
  5. Step 5: Solve for x
    x = 570,241,493,804.35/990,756.30
  6. Step 6: Final answer
    x = 575,561.81

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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.