Home / 1,324,246.40-1,827,453.12-720,638.72

Finding the Fourth Proportional to 1,324,246.40, 1,827,453.12 and 720,638.72

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Solution

The fourth proportional to 1,324,246.40, 1,827,453.12 and 720,638.72 is: 994,477.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,324,246.40 : 1,827,453.12 = 720,638.72 : x
  2. Step 2: Convert to fraction form
    1,324,246.40/1,827,453.12 = 720,638.72/x
  3. Step 3: Cross multiply
    1,324,246.40x = 1,827,453.12 × 720,638.72
  4. Step 4: Simplify right side
    1,324,246.40x = 1,316,933,477,256.81
  5. Step 5: Solve for x
    x = 1,316,933,477,256.81/1,324,246.40
  6. Step 6: Final answer
    x = 994,477.67

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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.