Home / 667,809.96-1,002,043.80-312,762.66

Finding the Fourth Proportional to 667,809.96, 1,002,043.80 and 312,762.66

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Solution

The fourth proportional to 667,809.96, 1,002,043.80 and 312,762.66 is: 469,298.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,809.96 : 1,002,043.80 = 312,762.66 : x
  2. Step 2: Convert to fraction form
    667,809.96/1,002,043.80 = 312,762.66/x
  3. Step 3: Cross multiply
    667,809.96x = 1,002,043.80 × 312,762.66
  4. Step 4: Simplify right side
    667,809.96x = 313,401,884,324.51
  5. Step 5: Solve for x
    x = 313,401,884,324.51/667,809.96
  6. Step 6: Final answer
    x = 469,298.01

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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.