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Finding the Fourth Proportional to 632,406.60, 949,047.30 and 455,040.90

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Solution

The fourth proportional to 632,406.60, 949,047.30 and 455,040.90 is: 682,876.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,406.60 : 949,047.30 = 455,040.90 : x
  2. Step 2: Convert to fraction form
    632,406.60/949,047.30 = 455,040.90/x
  3. Step 3: Cross multiply
    632,406.60x = 949,047.30 × 455,040.90
  4. Step 4: Simplify right side
    632,406.60x = 431,855,337,534.57
  5. Step 5: Solve for x
    x = 431,855,337,534.57/632,406.60
  6. Step 6: Final answer
    x = 682,876.08

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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.