Home / 647,811.27-893,977.21-361,331.13

Finding the Fourth Proportional to 647,811.27, 893,977.21 and 361,331.13

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Solution

The fourth proportional to 647,811.27, 893,977.21 and 361,331.13 is: 498,635.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,811.27 : 893,977.21 = 361,331.13 : x
  2. Step 2: Convert to fraction form
    647,811.27/893,977.21 = 361,331.13/x
  3. Step 3: Cross multiply
    647,811.27x = 893,977.21 × 361,331.13
  4. Step 4: Simplify right side
    647,811.27x = 323,021,795,483.55
  5. Step 5: Solve for x
    x = 323,021,795,483.55/647,811.27
  6. Step 6: Final answer
    x = 498,635.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.