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Finding the Fourth Proportional to 635,826.60, 877,400.10 and 363,893.40

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Solution

The fourth proportional to 635,826.60, 877,400.10 and 363,893.40 is: 502,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,826.60 : 877,400.10 = 363,893.40 : x
  2. Step 2: Convert to fraction form
    635,826.60/877,400.10 = 363,893.40/x
  3. Step 3: Cross multiply
    635,826.60x = 877,400.10 × 363,893.40
  4. Step 4: Simplify right side
    635,826.60x = 319,280,105,549.34
  5. Step 5: Solve for x
    x = 319,280,105,549.34/635,826.60
  6. Step 6: Final answer
    x = 502,149.65

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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.