Home / 746,289.72-1,119,429-213,811.20

Finding the Fourth Proportional to 746,289.72, 1,119,429 and 213,811.20

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Solution

The fourth proportional to 746,289.72, 1,119,429 and 213,811.20 is: 320,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,289.72 : 1,119,429 = 213,811.20 : x
  2. Step 2: Convert to fraction form
    746,289.72/1,119,429 = 213,811.20/x
  3. Step 3: Cross multiply
    746,289.72x = 1,119,429 × 213,811.20
  4. Step 4: Simplify right side
    746,289.72x = 239,346,457,804.80
  5. Step 5: Solve for x
    x = 239,346,457,804.80/746,289.72
  6. Step 6: Final answer
    x = 320,715.20

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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.