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Finding the Fourth Proportional to 537,445.78, 741,590.43 and 307,958.94

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Solution

The fourth proportional to 537,445.78, 741,590.43 and 307,958.94 is: 424,934.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,445.78 : 741,590.43 = 307,958.94 : x
  2. Step 2: Convert to fraction form
    537,445.78/741,590.43 = 307,958.94/x
  3. Step 3: Cross multiply
    537,445.78x = 741,590.43 × 307,958.94
  4. Step 4: Simplify right side
    537,445.78x = 228,379,398,801.13
  5. Step 5: Solve for x
    x = 228,379,398,801.13/537,445.78
  6. Step 6: Final answer
    x = 424,934.77

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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.