Home / 476,964.38-715,443.66-121,977.80

Finding the Fourth Proportional to 476,964.38, 715,443.66 and 121,977.80

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Solution

The fourth proportional to 476,964.38, 715,443.66 and 121,977.80 is: 182,965.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,964.38 : 715,443.66 = 121,977.80 : x
  2. Step 2: Convert to fraction form
    476,964.38/715,443.66 = 121,977.80/x
  3. Step 3: Cross multiply
    476,964.38x = 715,443.66 × 121,977.80
  4. Step 4: Simplify right side
    476,964.38x = 87,268,243,670.75
  5. Step 5: Solve for x
    x = 87,268,243,670.75/476,964.38
  6. Step 6: Final answer
    x = 182,965.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.