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Finding the Fourth Proportional to 549,329.18, 758,074.17 and 304,329.86

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Solution

The fourth proportional to 549,329.18, 758,074.17 and 304,329.86 is: 419,975.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,329.18 : 758,074.17 = 304,329.86 : x
  2. Step 2: Convert to fraction form
    549,329.18/758,074.17 = 304,329.86/x
  3. Step 3: Cross multiply
    549,329.18x = 758,074.17 × 304,329.86
  4. Step 4: Simplify right side
    549,329.18x = 230,704,609,199.64
  5. Step 5: Solve for x
    x = 230,704,609,199.64/549,329.18
  6. Step 6: Final answer
    x = 419,975.15

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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.