Home / 814,613.75-1,221,929.58-245,999.67

Finding the Fourth Proportional to 814,613.75, 1,221,929.58 and 245,999.67

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Solution

The fourth proportional to 814,613.75, 1,221,929.58 and 245,999.67 is: 369,002.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,613.75 : 1,221,929.58 = 245,999.67 : x
  2. Step 2: Convert to fraction form
    814,613.75/1,221,929.58 = 245,999.67/x
  3. Step 3: Cross multiply
    814,613.75x = 1,221,929.58 × 245,999.67
  4. Step 4: Simplify right side
    814,613.75x = 300,594,273,443.24
  5. Step 5: Solve for x
    x = 300,594,273,443.24/814,613.75
  6. Step 6: Final answer
    x = 369,002.21

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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.