Home / 814,258.49-1,220,142.20-435,233.16

Finding the Fourth Proportional to 814,258.49, 1,220,142.20 and 435,233.16

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Solution

The fourth proportional to 814,258.49, 1,220,142.20 and 435,233.16 is: 652,183.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,258.49 : 1,220,142.20 = 435,233.16 : x
  2. Step 2: Convert to fraction form
    814,258.49/1,220,142.20 = 435,233.16/x
  3. Step 3: Cross multiply
    814,258.49x = 1,220,142.20 × 435,233.16
  4. Step 4: Simplify right side
    814,258.49x = 531,046,343,179.19
  5. Step 5: Solve for x
    x = 531,046,343,179.19/814,258.49
  6. Step 6: Final answer
    x = 652,183.98

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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.