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Finding the Fourth Proportional to 549,568.45, 758,396.14 and 307,859.68

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Solution

The fourth proportional to 549,568.45, 758,396.14 and 307,859.68 is: 424,841.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,568.45 : 758,396.14 = 307,859.68 : x
  2. Step 2: Convert to fraction form
    549,568.45/758,396.14 = 307,859.68/x
  3. Step 3: Cross multiply
    549,568.45x = 758,396.14 × 307,859.68
  4. Step 4: Simplify right side
    549,568.45x = 233,479,589,538.35
  5. Step 5: Solve for x
    x = 233,479,589,538.35/549,568.45
  6. Step 6: Final answer
    x = 424,841.69

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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.