Home / 1,123,170.64-1,549,796.29-639,745.23

Finding the Fourth Proportional to 1,123,170.64, 1,549,796.29 and 639,745.23

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Solution

The fourth proportional to 1,123,170.64, 1,549,796.29 and 639,745.23 is: 882,746.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,170.64 : 1,549,796.29 = 639,745.23 : x
  2. Step 2: Convert to fraction form
    1,123,170.64/1,549,796.29 = 639,745.23/x
  3. Step 3: Cross multiply
    1,123,170.64x = 1,549,796.29 × 639,745.23
  4. Step 4: Simplify right side
    1,123,170.64x = 991,474,783,999.20
  5. Step 5: Solve for x
    x = 991,474,783,999.20/1,123,170.64
  6. Step 6: Final answer
    x = 882,746.35

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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.