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Finding the Fourth Proportional to 549,249.04, 757,942.68 and 307,509

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Solution

The fourth proportional to 549,249.04, 757,942.68 and 307,509 is: 424,350.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,249.04 : 757,942.68 = 307,509 : x
  2. Step 2: Convert to fraction form
    549,249.04/757,942.68 = 307,509/x
  3. Step 3: Cross multiply
    549,249.04x = 757,942.68 × 307,509
  4. Step 4: Simplify right side
    549,249.04x = 233,074,195,584.12
  5. Step 5: Solve for x
    x = 233,074,195,584.12/549,249.04
  6. Step 6: Final answer
    x = 424,350.67

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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.