Home / 1,405,983.80-2,108,975.70-927,686.90

Finding the Fourth Proportional to 1,405,983.80, 2,108,975.70 and 927,686.90

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Solution

The fourth proportional to 1,405,983.80, 2,108,975.70 and 927,686.90 is: 1,391,530.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,983.80 : 2,108,975.70 = 927,686.90 : x
  2. Step 2: Convert to fraction form
    1,405,983.80/2,108,975.70 = 927,686.90/x
  3. Step 3: Cross multiply
    1,405,983.80x = 2,108,975.70 × 927,686.90
  4. Step 4: Simplify right side
    1,405,983.80x = 1,956,469,129,308.33
  5. Step 5: Solve for x
    x = 1,956,469,129,308.33/1,405,983.80
  6. Step 6: Final answer
    x = 1,391,530.35

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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.