Home / 1,173,174.38-1,618,980.64-636,630.38

Finding the Fourth Proportional to 1,173,174.38, 1,618,980.64 and 636,630.38

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Solution

The fourth proportional to 1,173,174.38, 1,618,980.64 and 636,630.38 is: 878,549.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173,174.38 : 1,618,980.64 = 636,630.38 : x
  2. Step 2: Convert to fraction form
    1,173,174.38/1,618,980.64 = 636,630.38/x
  3. Step 3: Cross multiply
    1,173,174.38x = 1,618,980.64 × 636,630.38
  4. Step 4: Simplify right side
    1,173,174.38x = 1,030,692,250,369.36
  5. Step 5: Solve for x
    x = 1,030,692,250,369.36/1,173,174.38
  6. Step 6: Final answer
    x = 878,549.92

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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.