Home / 762,786.05-1,143,735.98-289,213.07

Finding the Fourth Proportional to 762,786.05, 1,143,735.98 and 289,213.07

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Solution

The fourth proportional to 762,786.05, 1,143,735.98 and 289,213.07 is: 433,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,786.05 : 1,143,735.98 = 289,213.07 : x
  2. Step 2: Convert to fraction form
    762,786.05/1,143,735.98 = 289,213.07/x
  3. Step 3: Cross multiply
    762,786.05x = 1,143,735.98 × 289,213.07
  4. Step 4: Simplify right side
    762,786.05x = 330,783,386,880.51
  5. Step 5: Solve for x
    x = 330,783,386,880.51/762,786.05
  6. Step 6: Final answer
    x = 433,651.60

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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.