Home / 1,111,863.40-1,667,795.10-401,914.60

Finding the Fourth Proportional to 1,111,863.40, 1,667,795.10 and 401,914.60

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Solution

The fourth proportional to 1,111,863.40, 1,667,795.10 and 401,914.60 is: 602,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,111,863.40 : 1,667,795.10 = 401,914.60 : x
  2. Step 2: Convert to fraction form
    1,111,863.40/1,667,795.10 = 401,914.60/x
  3. Step 3: Cross multiply
    1,111,863.40x = 1,667,795.10 × 401,914.60
  4. Step 4: Simplify right side
    1,111,863.40x = 670,311,200,498.46
  5. Step 5: Solve for x
    x = 670,311,200,498.46/1,111,863.40
  6. Step 6: Final answer
    x = 602,871.90

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Double scale
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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.