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Finding the Fourth Proportional to 549,053.64, 757,630.26 and 307,349.64

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Solution

The fourth proportional to 549,053.64, 757,630.26 and 307,349.64 is: 424,106.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,053.64 : 757,630.26 = 307,349.64 : x
  2. Step 2: Convert to fraction form
    549,053.64/757,630.26 = 307,349.64/x
  3. Step 3: Cross multiply
    549,053.64x = 757,630.26 × 307,349.64
  4. Step 4: Simplify right side
    549,053.64x = 232,857,387,664.11
  5. Step 5: Solve for x
    x = 232,857,387,664.11/549,053.64
  6. Step 6: Final answer
    x = 424,106.81

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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.