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Finding the Fourth Proportional to 628,722.40, 942,554.66 and 273,468.88

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Solution

The fourth proportional to 628,722.40, 942,554.66 and 273,468.88 is: 409,973.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,722.40 : 942,554.66 = 273,468.88 : x
  2. Step 2: Convert to fraction form
    628,722.40/942,554.66 = 273,468.88/x
  3. Step 3: Cross multiply
    628,722.40x = 942,554.66 × 273,468.88
  4. Step 4: Simplify right side
    628,722.40x = 257,759,367,208.98
  5. Step 5: Solve for x
    x = 257,759,367,208.98/628,722.40
  6. Step 6: Final answer
    x = 409,973.25

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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.