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Finding the Fourth Proportional to 612,757.51, 845,593.22 and 340,819.56

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Solution

The fourth proportional to 612,757.51, 845,593.22 and 340,819.56 is: 470,324.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,757.51 : 845,593.22 = 340,819.56 : x
  2. Step 2: Convert to fraction form
    612,757.51/845,593.22 = 340,819.56/x
  3. Step 3: Cross multiply
    612,757.51x = 845,593.22 × 340,819.56
  4. Step 4: Simplify right side
    612,757.51x = 288,194,710,031.43
  5. Step 5: Solve for x
    x = 288,194,710,031.43/612,757.51
  6. Step 6: Final answer
    x = 470,324.24

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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.