Home / 307,150.40-460,725.60-280,578.35

Finding the Fourth Proportional to 307,150.40, 460,725.60 and 280,578.35

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Solution

The fourth proportional to 307,150.40, 460,725.60 and 280,578.35 is: 420,867.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,150.40 : 460,725.60 = 280,578.35 : x
  2. Step 2: Convert to fraction form
    307,150.40/460,725.60 = 280,578.35/x
  3. Step 3: Cross multiply
    307,150.40x = 460,725.60 × 280,578.35
  4. Step 4: Simplify right side
    307,150.40x = 129,269,628,650.76
  5. Step 5: Solve for x
    x = 129,269,628,650.76/307,150.40
  6. Step 6: Final answer
    x = 420,867.53

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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.