Home / 763,869.44-1,054,147.28-419,699.84

Finding the Fourth Proportional to 763,869.44, 1,054,147.28 and 419,699.84

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Solution

The fourth proportional to 763,869.44, 1,054,147.28 and 419,699.84 is: 579,189.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,869.44 : 1,054,147.28 = 419,699.84 : x
  2. Step 2: Convert to fraction form
    763,869.44/1,054,147.28 = 419,699.84/x
  3. Step 3: Cross multiply
    763,869.44x = 1,054,147.28 × 419,699.84
  4. Step 4: Simplify right side
    763,869.44x = 442,425,437,383.20
  5. Step 5: Solve for x
    x = 442,425,437,383.20/763,869.44
  6. Step 6: Final answer
    x = 579,189.87

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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.