Home / 921,369.63-1,382,165.16-870,981.15

Finding the Fourth Proportional to 921,369.63, 1,382,165.16 and 870,981.15

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Solution

The fourth proportional to 921,369.63, 1,382,165.16 and 870,981.15 is: 1,306,576.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,369.63 : 1,382,165.16 = 870,981.15 : x
  2. Step 2: Convert to fraction form
    921,369.63/1,382,165.16 = 870,981.15/x
  3. Step 3: Cross multiply
    921,369.63x = 1,382,165.16 × 870,981.15
  4. Step 4: Simplify right side
    921,369.63x = 1,203,839,800,546.73
  5. Step 5: Solve for x
    x = 1,203,839,800,546.73/921,369.63
  6. Step 6: Final answer
    x = 1,306,576.39

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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.