Home / 869,404.70-1,304,107.05-629,903.90

Finding the Fourth Proportional to 869,404.70, 1,304,107.05 and 629,903.90

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Solution

The fourth proportional to 869,404.70, 1,304,107.05 and 629,903.90 is: 944,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,404.70 : 1,304,107.05 = 629,903.90 : x
  2. Step 2: Convert to fraction form
    869,404.70/1,304,107.05 = 629,903.90/x
  3. Step 3: Cross multiply
    869,404.70x = 1,304,107.05 × 629,903.90
  4. Step 4: Simplify right side
    869,404.70x = 821,462,116,812.50
  5. Step 5: Solve for x
    x = 821,462,116,812.50/869,404.70
  6. Step 6: Final answer
    x = 944,855.85

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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.