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Finding the Fourth Proportional to 549,896.64, 758,821.44 and 323,498.40

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Solution

The fourth proportional to 549,896.64, 758,821.44 and 323,498.40 is: 446,406.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,896.64 : 758,821.44 = 323,498.40 : x
  2. Step 2: Convert to fraction form
    549,896.64/758,821.44 = 323,498.40/x
  3. Step 3: Cross multiply
    549,896.64x = 758,821.44 × 323,498.40
  4. Step 4: Simplify right side
    549,896.64x = 245,477,521,725.70
  5. Step 5: Solve for x
    x = 245,477,521,725.70/549,896.64
  6. Step 6: Final answer
    x = 446,406.66

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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.