Home / 420,230.31-629,867.66-369,529.98

Finding the Fourth Proportional to 420,230.31, 629,867.66 and 369,529.98

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Solution

The fourth proportional to 420,230.31, 629,867.66 and 369,529.98 is: 553,874.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,230.31 : 629,867.66 = 369,529.98 : x
  2. Step 2: Convert to fraction form
    420,230.31/629,867.66 = 369,529.98/x
  3. Step 3: Cross multiply
    420,230.31x = 629,867.66 × 369,529.98
  4. Step 4: Simplify right side
    420,230.31x = 232,754,978,805.46
  5. Step 5: Solve for x
    x = 232,754,978,805.46/420,230.31
  6. Step 6: Final answer
    x = 553,874.81

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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.