Home / 783,865.72-1,081,746.21-439,777.72

Finding the Fourth Proportional to 783,865.72, 1,081,746.21 and 439,777.72

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Solution

The fourth proportional to 783,865.72, 1,081,746.21 and 439,777.72 is: 606,899.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,865.72 : 1,081,746.21 = 439,777.72 : x
  2. Step 2: Convert to fraction form
    783,865.72/1,081,746.21 = 439,777.72/x
  3. Step 3: Cross multiply
    783,865.72x = 1,081,746.21 × 439,777.72
  4. Step 4: Simplify right side
    783,865.72x = 475,727,881,852.44
  5. Step 5: Solve for x
    x = 475,727,881,852.44/783,865.72
  6. Step 6: Final answer
    x = 606,899.71

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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.