Home / 690,897.87-1,036,346.81-269,878.50

Finding the Fourth Proportional to 690,897.87, 1,036,346.81 and 269,878.50

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Solution

The fourth proportional to 690,897.87, 1,036,346.81 and 269,878.50 is: 404,817.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,897.87 : 1,036,346.81 = 269,878.50 : x
  2. Step 2: Convert to fraction form
    690,897.87/1,036,346.81 = 269,878.50/x
  3. Step 3: Cross multiply
    690,897.87x = 1,036,346.81 × 269,878.50
  4. Step 4: Simplify right side
    690,897.87x = 279,687,721,213.19
  5. Step 5: Solve for x
    x = 279,687,721,213.19/690,897.87
  6. Step 6: Final answer
    x = 404,817.75

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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.