Home / 827,145.80-1,240,718.70-228,199.40

Finding the Fourth Proportional to 827,145.80, 1,240,718.70 and 228,199.40

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Solution

The fourth proportional to 827,145.80, 1,240,718.70 and 228,199.40 is: 342,299.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,145.80 : 1,240,718.70 = 228,199.40 : x
  2. Step 2: Convert to fraction form
    827,145.80/1,240,718.70 = 228,199.40/x
  3. Step 3: Cross multiply
    827,145.80x = 1,240,718.70 × 228,199.40
  4. Step 4: Simplify right side
    827,145.80x = 283,131,262,908.78
  5. Step 5: Solve for x
    x = 283,131,262,908.78/827,145.80
  6. Step 6: Final answer
    x = 342,299.10

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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.