Home / 399,669.28-551,302.32-263,654.92

Finding the Fourth Proportional to 399,669.28, 551,302.32 and 263,654.92

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Solution

The fourth proportional to 399,669.28, 551,302.32 and 263,654.92 is: 363,684.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,669.28 : 551,302.32 = 263,654.92 : x
  2. Step 2: Convert to fraction form
    399,669.28/551,302.32 = 263,654.92/x
  3. Step 3: Cross multiply
    399,669.28x = 551,302.32 × 263,654.92
  4. Step 4: Simplify right side
    399,669.28x = 145,353,569,075.41
  5. Step 5: Solve for x
    x = 145,353,569,075.41/399,669.28
  6. Step 6: Final answer
    x = 363,684.62

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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.