Home / 809,652.19-1,117,418.54-470,120.44

Finding the Fourth Proportional to 809,652.19, 1,117,418.54 and 470,120.44

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Solution

The fourth proportional to 809,652.19, 1,117,418.54 and 470,120.44 is: 648,823.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,652.19 : 1,117,418.54 = 470,120.44 : x
  2. Step 2: Convert to fraction form
    809,652.19/1,117,418.54 = 470,120.44/x
  3. Step 3: Cross multiply
    809,652.19x = 1,117,418.54 × 470,120.44
  4. Step 4: Simplify right side
    809,652.19x = 525,321,295,688.96
  5. Step 5: Solve for x
    x = 525,321,295,688.96/809,652.19
  6. Step 6: Final answer
    x = 648,823.41

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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.