Home / 990,319.25-1,485,579.56-341,811.04

Finding the Fourth Proportional to 990,319.25, 1,485,579.56 and 341,811.04

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Solution

The fourth proportional to 990,319.25, 1,485,579.56 and 341,811.04 is: 512,751.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,319.25 : 1,485,579.56 = 341,811.04 : x
  2. Step 2: Convert to fraction form
    990,319.25/1,485,579.56 = 341,811.04/x
  3. Step 3: Cross multiply
    990,319.25x = 1,485,579.56 × 341,811.04
  4. Step 4: Simplify right side
    990,319.25x = 507,787,494,406.34
  5. Step 5: Solve for x
    x = 507,787,494,406.34/990,319.25
  6. Step 6: Final answer
    x = 512,751.31

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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.