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Finding the Fourth Proportional to 862,365.67, 1,293,737.84 and 255,106.44

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Solution

The fourth proportional to 862,365.67, 1,293,737.84 and 255,106.44 is: 382,715.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,365.67 : 1,293,737.84 = 255,106.44 : x
  2. Step 2: Convert to fraction form
    862,365.67/1,293,737.84 = 255,106.44/x
  3. Step 3: Cross multiply
    862,365.67x = 1,293,737.84 × 255,106.44
  4. Step 4: Simplify right side
    862,365.67x = 330,040,854,655.69
  5. Step 5: Solve for x
    x = 330,040,854,655.69/862,365.67
  6. Step 6: Final answer
    x = 382,715.67

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1.5x scale

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.