Home / 879,190.29-1,318,771.01-280,143.34

Finding the Fourth Proportional to 879,190.29, 1,318,771.01 and 280,143.34

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Solution

The fourth proportional to 879,190.29, 1,318,771.01 and 280,143.34 is: 420,210.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,190.29 : 1,318,771.01 = 280,143.34 : x
  2. Step 2: Convert to fraction form
    879,190.29/1,318,771.01 = 280,143.34/x
  3. Step 3: Cross multiply
    879,190.29x = 1,318,771.01 × 280,143.34
  4. Step 4: Simplify right side
    879,190.29x = 369,444,912,840.00
  5. Step 5: Solve for x
    x = 369,444,912,840.00/879,190.29
  6. Step 6: Final answer
    x = 420,210.41

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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.