Home / 1,211,378.40-1,814,880.60-705,525.30

Finding the Fourth Proportional to 1,211,378.40, 1,814,880.60 and 705,525.30

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Solution

The fourth proportional to 1,211,378.40, 1,814,880.60 and 705,525.30 is: 1,057,014.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,378.40 : 1,814,880.60 = 705,525.30 : x
  2. Step 2: Convert to fraction form
    1,211,378.40/1,814,880.60 = 705,525.30/x
  3. Step 3: Cross multiply
    1,211,378.40x = 1,814,880.60 × 705,525.30
  4. Step 4: Simplify right side
    1,211,378.40x = 1,280,444,179,779.18
  5. Step 5: Solve for x
    x = 1,280,444,179,779.18/1,211,378.40
  6. Step 6: Final answer
    x = 1,057,014.21

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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.