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Finding the Fourth Proportional to 536,496.40, 740,429.40 and 321,754.60

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Solution

The fourth proportional to 536,496.40, 740,429.40 and 321,754.60 is: 444,059.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,496.40 : 740,429.40 = 321,754.60 : x
  2. Step 2: Convert to fraction form
    536,496.40/740,429.40 = 321,754.60/x
  3. Step 3: Cross multiply
    536,496.40x = 740,429.40 × 321,754.60
  4. Step 4: Simplify right side
    536,496.40x = 238,236,565,425.24
  5. Step 5: Solve for x
    x = 238,236,565,425.24/536,496.40
  6. Step 6: Final answer
    x = 444,059.95

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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.