Home / 1,130,779.70-1,560,457.87-621,471.14

Finding the Fourth Proportional to 1,130,779.70, 1,560,457.87 and 621,471.14

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Solution

The fourth proportional to 1,130,779.70, 1,560,457.87 and 621,471.14 is: 857,620.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,779.70 : 1,560,457.87 = 621,471.14 : x
  2. Step 2: Convert to fraction form
    1,130,779.70/1,560,457.87 = 621,471.14/x
  3. Step 3: Cross multiply
    1,130,779.70x = 1,560,457.87 × 621,471.14
  4. Step 4: Simplify right side
    1,130,779.70x = 969,779,531,390.87
  5. Step 5: Solve for x
    x = 969,779,531,390.87/1,130,779.70
  6. Step 6: Final answer
    x = 857,620.22

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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.