Home / 1,223,704.51-1,688,742.26-672,415.72

Finding the Fourth Proportional to 1,223,704.51, 1,688,742.26 and 672,415.72

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Solution

The fourth proportional to 1,223,704.51, 1,688,742.26 and 672,415.72 is: 927,950.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,704.51 : 1,688,742.26 = 672,415.72 : x
  2. Step 2: Convert to fraction form
    1,223,704.51/1,688,742.26 = 672,415.72/x
  3. Step 3: Cross multiply
    1,223,704.51x = 1,688,742.26 × 672,415.72
  4. Step 4: Simplify right side
    1,223,704.51x = 1,135,536,836,954.75
  5. Step 5: Solve for x
    x = 1,135,536,836,954.75/1,223,704.51
  6. Step 6: Final answer
    x = 927,950.19

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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.