Home / 917,998.80-1,376,998.20-855,790.80

Finding the Fourth Proportional to 917,998.80, 1,376,998.20 and 855,790.80

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Solution

The fourth proportional to 917,998.80, 1,376,998.20 and 855,790.80 is: 1,283,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,998.80 : 1,376,998.20 = 855,790.80 : x
  2. Step 2: Convert to fraction form
    917,998.80/1,376,998.20 = 855,790.80/x
  3. Step 3: Cross multiply
    917,998.80x = 1,376,998.20 × 855,790.80
  4. Step 4: Simplify right side
    917,998.80x = 1,178,422,391,176.56
  5. Step 5: Solve for x
    x = 1,178,422,391,176.56/917,998.80
  6. Step 6: Final answer
    x = 1,283,686.20

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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.