Home / 1,386,026.90-2,079,040.35-1,214,609.30

Finding the Fourth Proportional to 1,386,026.90, 2,079,040.35 and 1,214,609.30

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Solution

The fourth proportional to 1,386,026.90, 2,079,040.35 and 1,214,609.30 is: 1,821,913.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,026.90 : 2,079,040.35 = 1,214,609.30 : x
  2. Step 2: Convert to fraction form
    1,386,026.90/2,079,040.35 = 1,214,609.30/x
  3. Step 3: Cross multiply
    1,386,026.90x = 2,079,040.35 × 1,214,609.30
  4. Step 4: Simplify right side
    1,386,026.90x = 2,525,221,744,185.26
  5. Step 5: Solve for x
    x = 2,525,221,744,185.26/1,386,026.90
  6. Step 6: Final answer
    x = 1,821,913.95

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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.