Home / 805,051.35-1,110,977.78-442,483.64

Finding the Fourth Proportional to 805,051.35, 1,110,977.78 and 442,483.64

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Solution

The fourth proportional to 805,051.35, 1,110,977.78 and 442,483.64 is: 610,631.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,051.35 : 1,110,977.78 = 442,483.64 : x
  2. Step 2: Convert to fraction form
    805,051.35/1,110,977.78 = 442,483.64/x
  3. Step 3: Cross multiply
    805,051.35x = 1,110,977.78 × 442,483.64
  4. Step 4: Simplify right side
    805,051.35x = 491,589,484,286.21
  5. Step 5: Solve for x
    x = 491,589,484,286.21/805,051.35
  6. Step 6: Final answer
    x = 610,631.22

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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.