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Finding the Fourth Proportional to 621,901, 932,814.42 and 365,877.40

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Solution

The fourth proportional to 621,901, 932,814.42 and 365,877.40 is: 548,794.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,901 : 932,814.42 = 365,877.40 : x
  2. Step 2: Convert to fraction form
    621,901/932,814.42 = 365,877.40/x
  3. Step 3: Cross multiply
    621,901x = 932,814.42 × 365,877.40
  4. Step 4: Simplify right side
    621,901x = 341,295,714,672.11
  5. Step 5: Solve for x
    x = 341,295,714,672.11/621,901
  6. Step 6: Final answer
    x = 548,794.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.