Home / 3,018,205.39-4,165,429.05-1,729,216.75

Finding the Fourth Proportional to 3,018,205.39, 4,165,429.05 and 1,729,216.75

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Solution

The fourth proportional to 3,018,205.39, 4,165,429.05 and 1,729,216.75 is: 2,386,494.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,018,205.39 : 4,165,429.05 = 1,729,216.75 : x
  2. Step 2: Convert to fraction form
    3,018,205.39/4,165,429.05 = 1,729,216.75/x
  3. Step 3: Cross multiply
    3,018,205.39x = 4,165,429.05 × 1,729,216.75
  4. Step 4: Simplify right side
    3,018,205.39x = 7,202,929,684,196.59
  5. Step 5: Solve for x
    x = 7,202,929,684,196.59/3,018,205.39
  6. Step 6: Final answer
    x = 2,386,494.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.