Home / 1,210,774.80-1,816,162.20-369,217.20

Finding the Fourth Proportional to 1,210,774.80, 1,816,162.20 and 369,217.20

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Solution

The fourth proportional to 1,210,774.80, 1,816,162.20 and 369,217.20 is: 553,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,774.80 : 1,816,162.20 = 369,217.20 : x
  2. Step 2: Convert to fraction form
    1,210,774.80/1,816,162.20 = 369,217.20/x
  3. Step 3: Cross multiply
    1,210,774.80x = 1,816,162.20 × 369,217.20
  4. Step 4: Simplify right side
    1,210,774.80x = 670,558,322,229.84
  5. Step 5: Solve for x
    x = 670,558,322,229.84/1,210,774.80
  6. Step 6: Final answer
    x = 553,825.80

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Double scale
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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.