Home / 1,428,787.44-1,971,724.05-816,951.69

Finding the Fourth Proportional to 1,428,787.44, 1,971,724.05 and 816,951.69

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Solution

The fourth proportional to 1,428,787.44, 1,971,724.05 and 816,951.69 is: 1,127,391.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,787.44 : 1,971,724.05 = 816,951.69 : x
  2. Step 2: Convert to fraction form
    1,428,787.44/1,971,724.05 = 816,951.69/x
  3. Step 3: Cross multiply
    1,428,787.44x = 1,971,724.05 × 816,951.69
  4. Step 4: Simplify right side
    1,428,787.44x = 1,610,803,294,861.14
  5. Step 5: Solve for x
    x = 1,610,803,294,861.14/1,428,787.44
  6. Step 6: Final answer
    x = 1,127,391.84

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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.