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Finding the Fourth Proportional to 324,692.64, 484,661.25 and 286,343.87

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Solution

The fourth proportional to 324,692.64, 484,661.25 and 286,343.87 is: 427,418.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,692.64 : 484,661.25 = 286,343.87 : x
  2. Step 2: Convert to fraction form
    324,692.64/484,661.25 = 286,343.87/x
  3. Step 3: Cross multiply
    324,692.64x = 484,661.25 × 286,343.87
  4. Step 4: Simplify right side
    324,692.64x = 138,779,775,540.73
  5. Step 5: Solve for x
    x = 138,779,775,540.73/324,692.64
  6. Step 6: Final answer
    x = 427,418.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.