Home / 1,520,380.80-2,280,279.60-455,457.60

Finding the Fourth Proportional to 1,520,380.80, 2,280,279.60 and 455,457.60

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Solution

The fourth proportional to 1,520,380.80, 2,280,279.60 and 455,457.60 is: 683,099.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,380.80 : 2,280,279.60 = 455,457.60 : x
  2. Step 2: Convert to fraction form
    1,520,380.80/2,280,279.60 = 455,457.60/x
  3. Step 3: Cross multiply
    1,520,380.80x = 2,280,279.60 × 455,457.60
  4. Step 4: Simplify right side
    1,520,380.80x = 1,038,570,673,944.96
  5. Step 5: Solve for x
    x = 1,038,570,673,944.96/1,520,380.80
  6. Step 6: Final answer
    x = 683,099.05

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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.