Home / 1,021,672.45-1,532,504.40-311,698.12

Finding the Fourth Proportional to 1,021,672.45, 1,532,504.40 and 311,698.12

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Solution

The fourth proportional to 1,021,672.45, 1,532,504.40 and 311,698.12 is: 467,545.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,672.45 : 1,532,504.40 = 311,698.12 : x
  2. Step 2: Convert to fraction form
    1,021,672.45/1,532,504.40 = 311,698.12/x
  3. Step 3: Cross multiply
    1,021,672.45x = 1,532,504.40 × 311,698.12
  4. Step 4: Simplify right side
    1,021,672.45x = 477,678,740,371.73
  5. Step 5: Solve for x
    x = 477,678,740,371.73/1,021,672.45
  6. Step 6: Final answer
    x = 467,545.88

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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.