Home / 816,013.80-1,224,020.70-255,047.40

Finding the Fourth Proportional to 816,013.80, 1,224,020.70 and 255,047.40

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Solution

The fourth proportional to 816,013.80, 1,224,020.70 and 255,047.40 is: 382,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,013.80 : 1,224,020.70 = 255,047.40 : x
  2. Step 2: Convert to fraction form
    816,013.80/1,224,020.70 = 255,047.40/x
  3. Step 3: Cross multiply
    816,013.80x = 1,224,020.70 × 255,047.40
  4. Step 4: Simplify right side
    816,013.80x = 312,183,297,081.18
  5. Step 5: Solve for x
    x = 312,183,297,081.18/816,013.80
  6. Step 6: Final answer
    x = 382,571.10

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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.