Home / 1,021,469.87-1,532,200.68-311,495.86

Finding the Fourth Proportional to 1,021,469.87, 1,532,200.68 and 311,495.86

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Solution

The fourth proportional to 1,021,469.87, 1,532,200.68 and 311,495.86 is: 467,242.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,469.87 : 1,532,200.68 = 311,495.86 : x
  2. Step 2: Convert to fraction form
    1,021,469.87/1,532,200.68 = 311,495.86/x
  3. Step 3: Cross multiply
    1,021,469.87x = 1,532,200.68 × 311,495.86
  4. Step 4: Simplify right side
    1,021,469.87x = 477,274,168,509.19
  5. Step 5: Solve for x
    x = 477,274,168,509.19/1,021,469.87
  6. Step 6: Final answer
    x = 467,242.53

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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.