Home / 628,408.92-867,208.26-341,931.12

Finding the Fourth Proportional to 628,408.92, 867,208.26 and 341,931.12

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Solution

The fourth proportional to 628,408.92, 867,208.26 and 341,931.12 is: 471,867.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,408.92 : 867,208.26 = 341,931.12 : x
  2. Step 2: Convert to fraction form
    628,408.92/867,208.26 = 341,931.12/x
  3. Step 3: Cross multiply
    628,408.92x = 867,208.26 × 341,931.12
  4. Step 4: Simplify right side
    628,408.92x = 296,525,491,615.05
  5. Step 5: Solve for x
    x = 296,525,491,615.05/628,408.92
  6. Step 6: Final answer
    x = 471,867.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.