Home / 805,485.18-1,208,753.42-300,450.16

Finding the Fourth Proportional to 805,485.18, 1,208,753.42 and 300,450.16

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Solution

The fourth proportional to 805,485.18, 1,208,753.42 and 300,450.16 is: 450,871.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,485.18 : 1,208,753.42 = 300,450.16 : x
  2. Step 2: Convert to fraction form
    805,485.18/1,208,753.42 = 300,450.16/x
  3. Step 3: Cross multiply
    805,485.18x = 1,208,753.42 × 300,450.16
  4. Step 4: Simplify right side
    805,485.18x = 363,170,156,168.79
  5. Step 5: Solve for x
    x = 363,170,156,168.79/805,485.18
  6. Step 6: Final answer
    x = 450,871.31

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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.