Home / 1,242,017.70-1,863,026.55-881,211.30

Finding the Fourth Proportional to 1,242,017.70, 1,863,026.55 and 881,211.30

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Solution

The fourth proportional to 1,242,017.70, 1,863,026.55 and 881,211.30 is: 1,321,816.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,017.70 : 1,863,026.55 = 881,211.30 : x
  2. Step 2: Convert to fraction form
    1,242,017.70/1,863,026.55 = 881,211.30/x
  3. Step 3: Cross multiply
    1,242,017.70x = 1,863,026.55 × 881,211.30
  4. Step 4: Simplify right side
    1,242,017.70x = 1,641,720,048,060.02
  5. Step 5: Solve for x
    x = 1,641,720,048,060.02/1,242,017.70
  6. Step 6: Final answer
    x = 1,321,816.95

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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.