Home / 1,858,205.70-2,787,308.55-661,479.30

Finding the Fourth Proportional to 1,858,205.70, 2,787,308.55 and 661,479.30

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Solution

The fourth proportional to 1,858,205.70, 2,787,308.55 and 661,479.30 is: 992,218.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,858,205.70 : 2,787,308.55 = 661,479.30 : x
  2. Step 2: Convert to fraction form
    1,858,205.70/2,787,308.55 = 661,479.30/x
  3. Step 3: Cross multiply
    1,858,205.70x = 2,787,308.55 × 661,479.30
  4. Step 4: Simplify right side
    1,858,205.70x = 1,843,746,908,538.02
  5. Step 5: Solve for x
    x = 1,843,746,908,538.02/1,858,205.70
  6. Step 6: Final answer
    x = 992,218.95

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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.