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Finding the Fourth Proportional to 415,259.40, 622,500.30 and 325,252.20

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Solution

The fourth proportional to 415,259.40, 622,500.30 and 325,252.20 is: 487,573.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,259.40 : 622,500.30 = 325,252.20 : x
  2. Step 2: Convert to fraction form
    415,259.40/622,500.30 = 325,252.20/x
  3. Step 3: Cross multiply
    415,259.40x = 622,500.30 × 325,252.20
  4. Step 4: Simplify right side
    415,259.40x = 202,469,592,075.66
  5. Step 5: Solve for x
    x = 202,469,592,075.66/415,259.40
  6. Step 6: Final answer
    x = 487,573.77

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1.5x scale

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.