Home / 2,219,890.78-3,328,487.76-870,436.63

Finding the Fourth Proportional to 2,219,890.78, 3,328,487.76 and 870,436.63

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Solution

The fourth proportional to 2,219,890.78, 3,328,487.76 and 870,436.63 is: 1,305,126.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,219,890.78 : 3,328,487.76 = 870,436.63 : x
  2. Step 2: Convert to fraction form
    2,219,890.78/3,328,487.76 = 870,436.63/x
  3. Step 3: Cross multiply
    2,219,890.78x = 3,328,487.76 × 870,436.63
  4. Step 4: Simplify right side
    2,219,890.78x = 2,897,237,668,810.65
  5. Step 5: Solve for x
    x = 2,897,237,668,810.65/2,219,890.78
  6. Step 6: Final answer
    x = 1,305,126.22

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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.