Home / 816,015.80-1,224,023.70-255,049.40

Finding the Fourth Proportional to 816,015.80, 1,224,023.70 and 255,049.40

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Solution

The fourth proportional to 816,015.80, 1,224,023.70 and 255,049.40 is: 382,574.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,015.80 : 1,224,023.70 = 255,049.40 : x
  2. Step 2: Convert to fraction form
    816,015.80/1,224,023.70 = 255,049.40/x
  3. Step 3: Cross multiply
    816,015.80x = 1,224,023.70 × 255,049.40
  4. Step 4: Simplify right side
    816,015.80x = 312,186,510,270.78
  5. Step 5: Solve for x
    x = 312,186,510,270.78/816,015.80
  6. Step 6: Final answer
    x = 382,574.10

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Similar ratio
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1.5x scale

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.