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Finding the Fourth Proportional to 626,898.60, 865,137.22 and 368,793.72

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Solution

The fourth proportional to 626,898.60, 865,137.22 and 368,793.72 is: 508,945.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,898.60 : 865,137.22 = 368,793.72 : x
  2. Step 2: Convert to fraction form
    626,898.60/865,137.22 = 368,793.72/x
  3. Step 3: Cross multiply
    626,898.60x = 865,137.22 × 368,793.72
  4. Step 4: Simplify right side
    626,898.60x = 319,057,173,674.26
  5. Step 5: Solve for x
    x = 319,057,173,674.26/626,898.60
  6. Step 6: Final answer
    x = 508,945.42

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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.