Home / 845,882.19-1,269,107.60-313,446.11

Finding the Fourth Proportional to 845,882.19, 1,269,107.60 and 313,446.11

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Solution

The fourth proportional to 845,882.19, 1,269,107.60 and 313,446.11 is: 470,274.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,882.19 : 1,269,107.60 = 313,446.11 : x
  2. Step 2: Convert to fraction form
    845,882.19/1,269,107.60 = 313,446.11/x
  3. Step 3: Cross multiply
    845,882.19x = 1,269,107.60 × 313,446.11
  4. Step 4: Simplify right side
    845,882.19x = 397,796,832,478.67
  5. Step 5: Solve for x
    x = 397,796,832,478.67/845,882.19
  6. Step 6: Final answer
    x = 470,274.51

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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.