Home / 682,977.09-942,631.77-407,352.63

Finding the Fourth Proportional to 682,977.09, 942,631.77 and 407,352.63

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Solution

The fourth proportional to 682,977.09, 942,631.77 and 407,352.63 is: 562,220.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,977.09 : 942,631.77 = 407,352.63 : x
  2. Step 2: Convert to fraction form
    682,977.09/942,631.77 = 407,352.63/x
  3. Step 3: Cross multiply
    682,977.09x = 942,631.77 × 407,352.63
  4. Step 4: Simplify right side
    682,977.09x = 383,983,530,631.06
  5. Step 5: Solve for x
    x = 383,983,530,631.06/682,977.09
  6. Step 6: Final answer
    x = 562,220.22

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1.5x scale

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.