Home / 869,586.80-1,303,732.20-449,164.40

Finding the Fourth Proportional to 869,586.80, 1,303,732.20 and 449,164.40

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Solution

The fourth proportional to 869,586.80, 1,303,732.20 and 449,164.40 is: 673,411.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,586.80 : 1,303,732.20 = 449,164.40 : x
  2. Step 2: Convert to fraction form
    869,586.80/1,303,732.20 = 449,164.40/x
  3. Step 3: Cross multiply
    869,586.80x = 1,303,732.20 × 449,164.40
  4. Step 4: Simplify right side
    869,586.80x = 585,590,091,373.68
  5. Step 5: Solve for x
    x = 585,590,091,373.68/869,586.80
  6. Step 6: Final answer
    x = 673,411.89

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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.