Home / 805,415.22-1,111,473.77-442,845.45

Finding the Fourth Proportional to 805,415.22, 1,111,473.77 and 442,845.45

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Solution

The fourth proportional to 805,415.22, 1,111,473.77 and 442,845.45 is: 611,127.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,415.22 : 1,111,473.77 = 442,845.45 : x
  2. Step 2: Convert to fraction form
    805,415.22/1,111,473.77 = 442,845.45/x
  3. Step 3: Cross multiply
    805,415.22x = 1,111,473.77 × 442,845.45
  4. Step 4: Simplify right side
    805,415.22x = 492,211,099,624.62
  5. Step 5: Solve for x
    x = 492,211,099,624.62/805,415.22
  6. Step 6: Final answer
    x = 611,127.14

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1.5x scale

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.