Home / 493,986.04-741,039.65-139,000.40

Finding the Fourth Proportional to 493,986.04, 741,039.65 and 139,000.40

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Solution

The fourth proportional to 493,986.04, 741,039.65 and 139,000.40 is: 208,517.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,986.04 : 741,039.65 = 139,000.40 : x
  2. Step 2: Convert to fraction form
    493,986.04/741,039.65 = 139,000.40/x
  3. Step 3: Cross multiply
    493,986.04x = 741,039.65 × 139,000.40
  4. Step 4: Simplify right side
    493,986.04x = 103,004,804,408.16
  5. Step 5: Solve for x
    x = 103,004,804,408.16/493,986.04
  6. Step 6: Final answer
    x = 208,517.64

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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.