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Finding the Fourth Proportional to 632,499.60, 949,186.80 and 455,133.90

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Solution

The fourth proportional to 632,499.60, 949,186.80 and 455,133.90 is: 683,015.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,499.60 : 949,186.80 = 455,133.90 : x
  2. Step 2: Convert to fraction form
    632,499.60/949,186.80 = 455,133.90/x
  3. Step 3: Cross multiply
    632,499.60x = 949,186.80 × 455,133.90
  4. Step 4: Simplify right side
    632,499.60x = 432,007,090,112.52
  5. Step 5: Solve for x
    x = 432,007,090,112.52/632,499.60
  6. Step 6: Final answer
    x = 683,015.59

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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.