Home / 1,284,747.94-1,927,123.44-386,189.74

Finding the Fourth Proportional to 1,284,747.94, 1,927,123.44 and 386,189.74

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Solution

The fourth proportional to 1,284,747.94, 1,927,123.44 and 386,189.74 is: 579,285.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,747.94 : 1,927,123.44 = 386,189.74 : x
  2. Step 2: Convert to fraction form
    1,284,747.94/1,927,123.44 = 386,189.74/x
  3. Step 3: Cross multiply
    1,284,747.94x = 1,927,123.44 × 386,189.74
  4. Step 4: Simplify right side
    1,284,747.94x = 744,235,300,241.51
  5. Step 5: Solve for x
    x = 744,235,300,241.51/1,284,747.94
  6. Step 6: Final answer
    x = 579,285.07

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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.