Home / 668,210.30-1,002,315.45-331,315.10

Finding the Fourth Proportional to 668,210.30, 1,002,315.45 and 331,315.10

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Solution

The fourth proportional to 668,210.30, 1,002,315.45 and 331,315.10 is: 496,972.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,210.30 : 1,002,315.45 = 331,315.10 : x
  2. Step 2: Convert to fraction form
    668,210.30/1,002,315.45 = 331,315.10/x
  3. Step 3: Cross multiply
    668,210.30x = 1,002,315.45 × 331,315.10
  4. Step 4: Simplify right side
    668,210.30x = 332,082,243,548.30
  5. Step 5: Solve for x
    x = 332,082,243,548.30/668,210.30
  6. Step 6: Final answer
    x = 496,972.65

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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.