Home / 1,131,879.88-1,697,880.30-290,438.92

Finding the Fourth Proportional to 1,131,879.88, 1,697,880.30 and 290,438.92

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Solution

The fourth proportional to 1,131,879.88, 1,697,880.30 and 290,438.92 is: 435,673.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,879.88 : 1,697,880.30 = 290,438.92 : x
  2. Step 2: Convert to fraction form
    1,131,879.88/1,697,880.30 = 290,438.92/x
  3. Step 3: Cross multiply
    1,131,879.88x = 1,697,880.30 × 290,438.92
  4. Step 4: Simplify right side
    1,131,879.88x = 493,130,520,621.28
  5. Step 5: Solve for x
    x = 493,130,520,621.28/1,131,879.88
  6. Step 6: Final answer
    x = 435,673.90

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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.