Home / 1,405,763.19-2,108,644.77-340,805.21

Finding the Fourth Proportional to 1,405,763.19, 2,108,644.77 and 340,805.21

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Solution

The fourth proportional to 1,405,763.19, 2,108,644.77 and 340,805.21 is: 511,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,763.19 : 2,108,644.77 = 340,805.21 : x
  2. Step 2: Convert to fraction form
    1,405,763.19/2,108,644.77 = 340,805.21/x
  3. Step 3: Cross multiply
    1,405,763.19x = 2,108,644.77 × 340,805.21
  4. Step 4: Simplify right side
    1,405,763.19x = 718,637,113,112.03
  5. Step 5: Solve for x
    x = 718,637,113,112.03/1,405,763.19
  6. Step 6: Final answer
    x = 511,207.80

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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.