Home / 879,054.93-1,318,781.25-280,050.21

Finding the Fourth Proportional to 879,054.93, 1,318,781.25 and 280,050.21

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Solution

The fourth proportional to 879,054.93, 1,318,781.25 and 280,050.21 is: 420,138.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,054.93 : 1,318,781.25 = 280,050.21 : x
  2. Step 2: Convert to fraction form
    879,054.93/1,318,781.25 = 280,050.21/x
  3. Step 3: Cross multiply
    879,054.93x = 1,318,781.25 × 280,050.21
  4. Step 4: Simplify right side
    879,054.93x = 369,324,966,006.56
  5. Step 5: Solve for x
    x = 369,324,966,006.56/879,054.93
  6. Step 6: Final answer
    x = 420,138.67

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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.