Home / 1,123,905.78-1,551,141.90-633,975.86

Finding the Fourth Proportional to 1,123,905.78, 1,551,141.90 and 633,975.86

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Solution

The fourth proportional to 1,123,905.78, 1,551,141.90 and 633,975.86 is: 874,972.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,905.78 : 1,551,141.90 = 633,975.86 : x
  2. Step 2: Convert to fraction form
    1,123,905.78/1,551,141.90 = 633,975.86/x
  3. Step 3: Cross multiply
    1,123,905.78x = 1,551,141.90 × 633,975.86
  4. Step 4: Simplify right side
    1,123,905.78x = 983,386,523,912.39
  5. Step 5: Solve for x
    x = 983,386,523,912.39/1,123,905.78
  6. Step 6: Final answer
    x = 874,972.39

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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.