Home / 2,800,043.19-4,200,041.31-778,281.17

Finding the Fourth Proportional to 2,800,043.19, 4,200,041.31 and 778,281.17

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Solution

The fourth proportional to 2,800,043.19, 4,200,041.31 and 778,281.17 is: 1,167,415.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,800,043.19 : 4,200,041.31 = 778,281.17 : x
  2. Step 2: Convert to fraction form
    2,800,043.19/4,200,041.31 = 778,281.17/x
  3. Step 3: Cross multiply
    2,800,043.19x = 4,200,041.31 × 778,281.17
  4. Step 4: Simplify right side
    2,800,043.19x = 3,268,813,043,794.93
  5. Step 5: Solve for x
    x = 3,268,813,043,794.93/2,800,043.19
  6. Step 6: Final answer
    x = 1,167,415.22

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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.