Home / 1,131,426.80-1,697,101.80-289,986.80

Finding the Fourth Proportional to 1,131,426.80, 1,697,101.80 and 289,986.80

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Solution

The fourth proportional to 1,131,426.80, 1,697,101.80 and 289,986.80 is: 434,970.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,426.80 : 1,697,101.80 = 289,986.80 : x
  2. Step 2: Convert to fraction form
    1,131,426.80/1,697,101.80 = 289,986.80/x
  3. Step 3: Cross multiply
    1,131,426.80x = 1,697,101.80 × 289,986.80
  4. Step 4: Simplify right side
    1,131,426.80x = 492,137,120,256.24
  5. Step 5: Solve for x
    x = 492,137,120,256.24/1,131,426.80
  6. Step 6: Final answer
    x = 434,970.36

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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.