Home / 1,230,809.80-1,695,998.10-908,009.80

Finding the Fourth Proportional to 1,230,809.80, 1,695,998.10 and 908,009.80

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Solution

The fourth proportional to 1,230,809.80, 1,695,998.10 and 908,009.80 is: 1,251,194.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,809.80 : 1,695,998.10 = 908,009.80 : x
  2. Step 2: Convert to fraction form
    1,230,809.80/1,695,998.10 = 908,009.80/x
  3. Step 3: Cross multiply
    1,230,809.80x = 1,695,998.10 × 908,009.80
  4. Step 4: Simplify right side
    1,230,809.80x = 1,539,982,895,581.38
  5. Step 5: Solve for x
    x = 1,539,982,895,581.38/1,230,809.80
  6. Step 6: Final answer
    x = 1,251,194.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.