Home / 666,881.24-1,000,322.58-312,144.38

Finding the Fourth Proportional to 666,881.24, 1,000,322.58 and 312,144.38

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Solution

The fourth proportional to 666,881.24, 1,000,322.58 and 312,144.38 is: 468,216.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,881.24 : 1,000,322.58 = 312,144.38 : x
  2. Step 2: Convert to fraction form
    666,881.24/1,000,322.58 = 312,144.38/x
  3. Step 3: Cross multiply
    666,881.24x = 1,000,322.58 × 312,144.38
  4. Step 4: Simplify right side
    666,881.24x = 312,245,066,532.49
  5. Step 5: Solve for x
    x = 312,245,066,532.49/666,881.24
  6. Step 6: Final answer
    x = 468,216.90

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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.