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Finding the Fourth Proportional to 549,089.18, 757,720.32 and 319,652.38

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Solution

The fourth proportional to 549,089.18, 757,720.32 and 319,652.38 is: 441,107.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,089.18 : 757,720.32 = 319,652.38 : x
  2. Step 2: Convert to fraction form
    549,089.18/757,720.32 = 319,652.38/x
  3. Step 3: Cross multiply
    549,089.18x = 757,720.32 × 319,652.38
  4. Step 4: Simplify right side
    549,089.18x = 242,207,100,946.68
  5. Step 5: Solve for x
    x = 242,207,100,946.68/549,089.18
  6. Step 6: Final answer
    x = 441,107.04

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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.