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Finding the Fourth Proportional to 549,054.64, 757,631.64 and 307,350.64

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Solution

The fourth proportional to 549,054.64, 757,631.64 and 307,350.64 is: 424,108.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,054.64 : 757,631.64 = 307,350.64 : x
  2. Step 2: Convert to fraction form
    549,054.64/757,631.64 = 307,350.64/x
  3. Step 3: Cross multiply
    549,054.64x = 757,631.64 × 307,350.64
  4. Step 4: Simplify right side
    549,054.64x = 232,858,569,438.25
  5. Step 5: Solve for x
    x = 232,858,569,438.25/549,054.64
  6. Step 6: Final answer
    x = 424,108.19

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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.