Home / 1,264,986.90-1,897,480.35-1,208,999.70

Finding the Fourth Proportional to 1,264,986.90, 1,897,480.35 and 1,208,999.70

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Solution

The fourth proportional to 1,264,986.90, 1,897,480.35 and 1,208,999.70 is: 1,813,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,986.90 : 1,897,480.35 = 1,208,999.70 : x
  2. Step 2: Convert to fraction form
    1,264,986.90/1,897,480.35 = 1,208,999.70/x
  3. Step 3: Cross multiply
    1,264,986.90x = 1,897,480.35 × 1,208,999.70
  4. Step 4: Simplify right side
    1,264,986.90x = 2,294,053,173,905.90
  5. Step 5: Solve for x
    x = 2,294,053,173,905.90/1,264,986.90
  6. Step 6: Final answer
    x = 1,813,499.55

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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.