Home / 805,214.74-1,111,199.92-442,661.90

Finding the Fourth Proportional to 805,214.74, 1,111,199.92 and 442,661.90

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Solution

The fourth proportional to 805,214.74, 1,111,199.92 and 442,661.90 is: 610,875.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,214.74 : 1,111,199.92 = 442,661.90 : x
  2. Step 2: Convert to fraction form
    805,214.74/1,111,199.92 = 442,661.90/x
  3. Step 3: Cross multiply
    805,214.74x = 1,111,199.92 × 442,661.90
  4. Step 4: Simplify right side
    805,214.74x = 491,885,867,867.05
  5. Step 5: Solve for x
    x = 491,885,867,867.05/805,214.74
  6. Step 6: Final answer
    x = 610,875.39

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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.