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Finding the Fourth Proportional to 628,952.18, 941,991.03 and 493,708.40

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Solution

The fourth proportional to 628,952.18, 941,991.03 and 493,708.40 is: 739,434.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,952.18 : 941,991.03 = 493,708.40 : x
  2. Step 2: Convert to fraction form
    628,952.18/941,991.03 = 493,708.40/x
  3. Step 3: Cross multiply
    628,952.18x = 941,991.03 × 493,708.40
  4. Step 4: Simplify right side
    628,952.18x = 465,068,884,235.65
  5. Step 5: Solve for x
    x = 465,068,884,235.65/628,952.18
  6. Step 6: Final answer
    x = 739,434.41

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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.