Home / 989,099.09-1,483,441.04-278,961.05

Finding the Fourth Proportional to 989,099.09, 1,483,441.04 and 278,961.05

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Solution

The fourth proportional to 989,099.09, 1,483,441.04 and 278,961.05 is: 418,383.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,099.09 : 1,483,441.04 = 278,961.05 : x
  2. Step 2: Convert to fraction form
    989,099.09/1,483,441.04 = 278,961.05/x
  3. Step 3: Cross multiply
    989,099.09x = 1,483,441.04 × 278,961.05
  4. Step 4: Simplify right side
    989,099.09x = 413,822,261,319.48
  5. Step 5: Solve for x
    x = 413,822,261,319.48/989,099.09
  6. Step 6: Final answer
    x = 418,383.02

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1.5x scale

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.