Home / 454,809.69-682,247.34-139,225.59

Finding the Fourth Proportional to 454,809.69, 682,247.34 and 139,225.59

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Solution

The fourth proportional to 454,809.69, 682,247.34 and 139,225.59 is: 208,848.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,809.69 : 682,247.34 = 139,225.59 : x
  2. Step 2: Convert to fraction form
    454,809.69/682,247.34 = 139,225.59/x
  3. Step 3: Cross multiply
    454,809.69x = 682,247.34 × 139,225.59
  4. Step 4: Simplify right side
    454,809.69x = 94,986,288,437.43
  5. Step 5: Solve for x
    x = 94,986,288,437.43/454,809.69
  6. Step 6: Final answer
    x = 208,848.43

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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.