Home / 668,855.30-1,002,668.70-289,537.16

Finding the Fourth Proportional to 668,855.30, 1,002,668.70 and 289,537.16

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Solution

The fourth proportional to 668,855.30, 1,002,668.70 and 289,537.16 is: 434,039.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,855.30 : 1,002,668.70 = 289,537.16 : x
  2. Step 2: Convert to fraction form
    668,855.30/1,002,668.70 = 289,537.16/x
  3. Step 3: Cross multiply
    668,855.30x = 1,002,668.70 × 289,537.16
  4. Step 4: Simplify right side
    668,855.30x = 290,309,847,818.89
  5. Step 5: Solve for x
    x = 290,309,847,818.89/668,855.30
  6. Step 6: Final answer
    x = 434,039.84

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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.