Home / 690,897.77-1,036,346.67-269,878.40

Finding the Fourth Proportional to 690,897.77, 1,036,346.67 and 269,878.40

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Solution

The fourth proportional to 690,897.77, 1,036,346.67 and 269,878.40 is: 404,817.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,897.77 : 1,036,346.67 = 269,878.40 : x
  2. Step 2: Convert to fraction form
    690,897.77/1,036,346.67 = 269,878.40/x
  3. Step 3: Cross multiply
    690,897.77x = 1,036,346.67 × 269,878.40
  4. Step 4: Simplify right side
    690,897.77x = 279,687,581,144.93
  5. Step 5: Solve for x
    x = 279,687,581,144.93/690,897.77
  6. Step 6: Final answer
    x = 404,817.61

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Similar ratio
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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.