Home / 768,900.16-1,153,381.66-263,808.46

Finding the Fourth Proportional to 768,900.16, 1,153,381.66 and 263,808.46

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Solution

The fourth proportional to 768,900.16, 1,153,381.66 and 263,808.46 is: 395,723.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,900.16 : 1,153,381.66 = 263,808.46 : x
  2. Step 2: Convert to fraction form
    768,900.16/1,153,381.66 = 263,808.46/x
  3. Step 3: Cross multiply
    768,900.16x = 1,153,381.66 × 263,808.46
  4. Step 4: Simplify right side
    768,900.16x = 304,271,839,516.84
  5. Step 5: Solve for x
    x = 304,271,839,516.84/768,900.16
  6. Step 6: Final answer
    x = 395,723.47

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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.