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Finding the Fourth Proportional to 518,237.58, 775,600.62 and 318,684.36

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Solution

The fourth proportional to 518,237.58, 775,600.62 and 318,684.36 is: 476,946.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,237.58 : 775,600.62 = 318,684.36 : x
  2. Step 2: Convert to fraction form
    518,237.58/775,600.62 = 318,684.36/x
  3. Step 3: Cross multiply
    518,237.58x = 775,600.62 × 318,684.36
  4. Step 4: Simplify right side
    518,237.58x = 247,171,787,200.30
  5. Step 5: Solve for x
    x = 247,171,787,200.30/518,237.58
  6. Step 6: Final answer
    x = 476,946.86

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1.5x scale

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.