Home / 1,645,807.80-2,468,711.70-1,380,087.30

Finding the Fourth Proportional to 1,645,807.80, 2,468,711.70 and 1,380,087.30

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Solution

The fourth proportional to 1,645,807.80, 2,468,711.70 and 1,380,087.30 is: 2,070,130.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,645,807.80 : 2,468,711.70 = 1,380,087.30 : x
  2. Step 2: Convert to fraction form
    1,645,807.80/2,468,711.70 = 1,380,087.30/x
  3. Step 3: Cross multiply
    1,645,807.80x = 2,468,711.70 × 1,380,087.30
  4. Step 4: Simplify right side
    1,645,807.80x = 3,407,037,664,531.41
  5. Step 5: Solve for x
    x = 3,407,037,664,531.41/1,645,807.80
  6. Step 6: Final answer
    x = 2,070,130.95

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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.