Home / 989,102.60-1,483,872.60-456,495.20

Finding the Fourth Proportional to 989,102.60, 1,483,872.60 and 456,495.20

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Solution

The fourth proportional to 989,102.60, 1,483,872.60 and 456,495.20 is: 684,843.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,102.60 : 1,483,872.60 = 456,495.20 : x
  2. Step 2: Convert to fraction form
    989,102.60/1,483,872.60 = 456,495.20/x
  3. Step 3: Cross multiply
    989,102.60x = 1,483,872.60 × 456,495.20
  4. Step 4: Simplify right side
    989,102.60x = 677,380,719,311.52
  5. Step 5: Solve for x
    x = 677,380,719,311.52/989,102.60
  6. Step 6: Final answer
    x = 684,843.74

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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.