Home / 456,289.20-683,121.60-279,142.20

Finding the Fourth Proportional to 456,289.20, 683,121.60 and 279,142.20

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Solution

The fourth proportional to 456,289.20, 683,121.60 and 279,142.20 is: 417,910.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,289.20 : 683,121.60 = 279,142.20 : x
  2. Step 2: Convert to fraction form
    456,289.20/683,121.60 = 279,142.20/x
  3. Step 3: Cross multiply
    456,289.20x = 683,121.60 × 279,142.20
  4. Step 4: Simplify right side
    456,289.20x = 190,688,066,291.52
  5. Step 5: Solve for x
    x = 190,688,066,291.52/456,289.20
  6. Step 6: Final answer
    x = 417,910.54

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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.