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Finding the Fourth Proportional to 549,045.36, 823,709.97 and 321,533.10

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Solution

The fourth proportional to 549,045.36, 823,709.97 and 321,533.10 is: 482,382.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,045.36 : 823,709.97 = 321,533.10 : x
  2. Step 2: Convert to fraction form
    549,045.36/823,709.97 = 321,533.10/x
  3. Step 3: Cross multiply
    549,045.36x = 823,709.97 × 321,533.10
  4. Step 4: Simplify right side
    549,045.36x = 264,850,020,155.01
  5. Step 5: Solve for x
    x = 264,850,020,155.01/549,045.36
  6. Step 6: Final answer
    x = 482,382.77

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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.