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Finding the Fourth Proportional to 585,408.87, 807,870.51 and 343,694.34

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Solution

The fourth proportional to 585,408.87, 807,870.51 and 343,694.34 is: 474,301.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,408.87 : 807,870.51 = 343,694.34 : x
  2. Step 2: Convert to fraction form
    585,408.87/807,870.51 = 343,694.34/x
  3. Step 3: Cross multiply
    585,408.87x = 807,870.51 × 343,694.34
  4. Step 4: Simplify right side
    585,408.87x = 277,660,521,739.91
  5. Step 5: Solve for x
    x = 277,660,521,739.91/585,408.87
  6. Step 6: Final answer
    x = 474,301.87

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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.