Home / 682,571.22-1,023,856.84-640,498.81

Finding the Fourth Proportional to 682,571.22, 1,023,856.84 and 640,498.81

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Solution

The fourth proportional to 682,571.22, 1,023,856.84 and 640,498.81 is: 960,748.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,571.22 : 1,023,856.84 = 640,498.81 : x
  2. Step 2: Convert to fraction form
    682,571.22/1,023,856.84 = 640,498.81/x
  3. Step 3: Cross multiply
    682,571.22x = 1,023,856.84 × 640,498.81
  4. Step 4: Simplify right side
    682,571.22x = 655,779,087,791.07
  5. Step 5: Solve for x
    x = 655,779,087,791.07/682,571.22
  6. Step 6: Final answer
    x = 960,748.22

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1.5x scale

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.