Home / 667,809.46-1,002,043.05-312,762.16

Finding the Fourth Proportional to 667,809.46, 1,002,043.05 and 312,762.16

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Solution

The fourth proportional to 667,809.46, 1,002,043.05 and 312,762.16 is: 469,297.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,809.46 : 1,002,043.05 = 312,762.16 : x
  2. Step 2: Convert to fraction form
    667,809.46/1,002,043.05 = 312,762.16/x
  3. Step 3: Cross multiply
    667,809.46x = 1,002,043.05 × 312,762.16
  4. Step 4: Simplify right side
    667,809.46x = 313,401,148,730.99
  5. Step 5: Solve for x
    x = 313,401,148,730.99/667,809.46
  6. Step 6: Final answer
    x = 469,297.26

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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.