Home / 1,405,328.73-2,107,677.59-646,441.35

Finding the Fourth Proportional to 1,405,328.73, 2,107,677.59 and 646,441.35

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Solution

The fourth proportional to 1,405,328.73, 2,107,677.59 and 646,441.35 is: 969,516.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,328.73 : 2,107,677.59 = 646,441.35 : x
  2. Step 2: Convert to fraction form
    1,405,328.73/2,107,677.59 = 646,441.35/x
  3. Step 3: Cross multiply
    1,405,328.73x = 2,107,677.59 × 646,441.35
  4. Step 4: Simplify right side
    1,405,328.73x = 1,362,489,946,644.35
  5. Step 5: Solve for x
    x = 1,362,489,946,644.35/1,405,328.73
  6. Step 6: Final answer
    x = 969,516.89

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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.