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Finding the Fourth Proportional to 637,495.71, 879,669.28 and 361,835.29

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Solution

The fourth proportional to 637,495.71, 879,669.28 and 361,835.29 is: 499,290.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,495.71 : 879,669.28 = 361,835.29 : x
  2. Step 2: Convert to fraction form
    637,495.71/879,669.28 = 361,835.29/x
  3. Step 3: Cross multiply
    637,495.71x = 879,669.28 × 361,835.29
  4. Step 4: Simplify right side
    637,495.71x = 318,295,389,032.89
  5. Step 5: Solve for x
    x = 318,295,389,032.89/637,495.71
  6. Step 6: Final answer
    x = 499,290.24

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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.