Home / 805,323.49-1,111,353.89-442,749.90

Finding the Fourth Proportional to 805,323.49, 1,111,353.89 and 442,749.90

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Solution

The fourth proportional to 805,323.49, 1,111,353.89 and 442,749.90 is: 610,998.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,323.49 : 1,111,353.89 = 442,749.90 : x
  2. Step 2: Convert to fraction form
    805,323.49/1,111,353.89 = 442,749.90/x
  3. Step 3: Cross multiply
    805,323.49x = 1,111,353.89 × 442,749.90
  4. Step 4: Simplify right side
    805,323.49x = 492,051,823,662.11
  5. Step 5: Solve for x
    x = 492,051,823,662.11/805,323.49
  6. Step 6: Final answer
    x = 610,998.97

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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.