Home / 863,343.68-1,293,907.20-413,390.32

Finding the Fourth Proportional to 863,343.68, 1,293,907.20 and 413,390.32

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Solution

The fourth proportional to 863,343.68, 1,293,907.20 and 413,390.32 is: 619,554.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,343.68 : 1,293,907.20 = 413,390.32 : x
  2. Step 2: Convert to fraction form
    863,343.68/1,293,907.20 = 413,390.32/x
  3. Step 3: Cross multiply
    863,343.68x = 1,293,907.20 × 413,390.32
  4. Step 4: Simplify right side
    863,343.68x = 534,888,711,458.30
  5. Step 5: Solve for x
    x = 534,888,711,458.30/863,343.68
  6. Step 6: Final answer
    x = 619,554.79

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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.