Home / 1,130,779.20-1,560,457.19-621,470.64

Finding the Fourth Proportional to 1,130,779.20, 1,560,457.19 and 621,470.64

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Solution

The fourth proportional to 1,130,779.20, 1,560,457.19 and 621,470.64 is: 857,619.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,779.20 : 1,560,457.19 = 621,470.64 : x
  2. Step 2: Convert to fraction form
    1,130,779.20/1,560,457.19 = 621,470.64/x
  3. Step 3: Cross multiply
    1,130,779.20x = 1,560,457.19 × 621,470.64
  4. Step 4: Simplify right side
    1,130,779.20x = 969,778,325,454.55
  5. Step 5: Solve for x
    x = 969,778,325,454.55/1,130,779.20
  6. Step 6: Final answer
    x = 857,619.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.