Home / 1,405,631.75-2,108,447.65-340,673.81

Finding the Fourth Proportional to 1,405,631.75, 2,108,447.65 and 340,673.81

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Solution

The fourth proportional to 1,405,631.75, 2,108,447.65 and 340,673.81 is: 511,010.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,631.75 : 2,108,447.65 = 340,673.81 : x
  2. Step 2: Convert to fraction form
    1,405,631.75/2,108,447.65 = 340,673.81/x
  3. Step 3: Cross multiply
    1,405,631.75x = 2,108,447.65 × 340,673.81
  4. Step 4: Simplify right side
    1,405,631.75x = 718,292,894,111.05
  5. Step 5: Solve for x
    x = 718,292,894,111.05/1,405,631.75
  6. Step 6: Final answer
    x = 511,010.72

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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.