Home / 869,012.90-1,303,616.55-269,969.30

Finding the Fourth Proportional to 869,012.90, 1,303,616.55 and 269,969.30

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Solution

The fourth proportional to 869,012.90, 1,303,616.55 and 269,969.30 is: 404,984.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,012.90 : 1,303,616.55 = 269,969.30 : x
  2. Step 2: Convert to fraction form
    869,012.90/1,303,616.55 = 269,969.30/x
  3. Step 3: Cross multiply
    869,012.90x = 1,303,616.55 × 269,969.30
  4. Step 4: Simplify right side
    869,012.90x = 351,936,447,471.92
  5. Step 5: Solve for x
    x = 351,936,447,471.92/869,012.90
  6. Step 6: Final answer
    x = 404,984.15

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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.