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Finding the Fourth Proportional to 549,722.54, 758,603.87 and 308,015.30

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Solution

The fourth proportional to 549,722.54, 758,603.87 and 308,015.30 is: 425,053.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,722.54 : 758,603.87 = 308,015.30 : x
  2. Step 2: Convert to fraction form
    549,722.54/758,603.87 = 308,015.30/x
  3. Step 3: Cross multiply
    549,722.54x = 758,603.87 × 308,015.30
  4. Step 4: Simplify right side
    549,722.54x = 233,661,593,266.12
  5. Step 5: Solve for x
    x = 233,661,593,266.12/549,722.54
  6. Step 6: Final answer
    x = 425,053.69

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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.