Home / 805,358.22-1,111,401.93-442,784.58

Finding the Fourth Proportional to 805,358.22, 1,111,401.93 and 442,784.58

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Solution

The fourth proportional to 805,358.22, 1,111,401.93 and 442,784.58 is: 611,046.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,358.22 : 1,111,401.93 = 442,784.58 : x
  2. Step 2: Convert to fraction form
    805,358.22/1,111,401.93 = 442,784.58/x
  3. Step 3: Cross multiply
    805,358.22x = 1,111,401.93 × 442,784.58
  4. Step 4: Simplify right side
    805,358.22x = 492,111,636,786.24
  5. Step 5: Solve for x
    x = 492,111,636,786.24/805,358.22
  6. Step 6: Final answer
    x = 611,046.89

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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.