Home / 483,719.18-667,260.05-290,075.31

Finding the Fourth Proportional to 483,719.18, 667,260.05 and 290,075.31

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Solution

The fourth proportional to 483,719.18, 667,260.05 and 290,075.31 is: 400,140.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,719.18 : 667,260.05 = 290,075.31 : x
  2. Step 2: Convert to fraction form
    483,719.18/667,260.05 = 290,075.31/x
  3. Step 3: Cross multiply
    483,719.18x = 667,260.05 × 290,075.31
  4. Step 4: Simplify right side
    483,719.18x = 193,555,664,403.99
  5. Step 5: Solve for x
    x = 193,555,664,403.99/483,719.18
  6. Step 6: Final answer
    x = 400,140.57

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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.