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Finding the Fourth Proportional to 518,932.37, 778,431.36 and 219,373.52

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Solution

The fourth proportional to 518,932.37, 778,431.36 and 219,373.52 is: 329,074.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,932.37 : 778,431.36 = 219,373.52 : x
  2. Step 2: Convert to fraction form
    518,932.37/778,431.36 = 219,373.52/x
  3. Step 3: Cross multiply
    518,932.37x = 778,431.36 × 219,373.52
  4. Step 4: Simplify right side
    518,932.37x = 170,767,224,452.08
  5. Step 5: Solve for x
    x = 170,767,224,452.08/518,932.37
  6. Step 6: Final answer
    x = 329,074.14

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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.