Home / 763,840.11-1,054,102.37-419,703.92

Finding the Fourth Proportional to 763,840.11, 1,054,102.37 and 419,703.92

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Solution

The fourth proportional to 763,840.11, 1,054,102.37 and 419,703.92 is: 579,193.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,840.11 : 1,054,102.37 = 419,703.92 : x
  2. Step 2: Convert to fraction form
    763,840.11/1,054,102.37 = 419,703.92/x
  3. Step 3: Cross multiply
    763,840.11x = 1,054,102.37 × 419,703.92
  4. Step 4: Simplify right side
    763,840.11x = 442,410,896,770.29
  5. Step 5: Solve for x
    x = 442,410,896,770.29/763,840.11
  6. Step 6: Final answer
    x = 579,193.07

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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.