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Finding the Fourth Proportional to 348,529.66, 520,433.73 and 276,645.80

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Solution

The fourth proportional to 348,529.66, 520,433.73 and 276,645.80 is: 413,094.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,529.66 : 520,433.73 = 276,645.80 : x
  2. Step 2: Convert to fraction form
    348,529.66/520,433.73 = 276,645.80/x
  3. Step 3: Cross multiply
    348,529.66x = 520,433.73 × 276,645.80
  4. Step 4: Simplify right side
    348,529.66x = 143,975,806,883.92
  5. Step 5: Solve for x
    x = 143,975,806,883.92/348,529.66
  6. Step 6: Final answer
    x = 413,094.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.