Home / 658,315.60-987,719.44-259,234.58

Finding the Fourth Proportional to 658,315.60, 987,719.44 and 259,234.58

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Solution

The fourth proportional to 658,315.60, 987,719.44 and 259,234.58 is: 388,948.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,315.60 : 987,719.44 = 259,234.58 : x
  2. Step 2: Convert to fraction form
    658,315.60/987,719.44 = 259,234.58/x
  3. Step 3: Cross multiply
    658,315.60x = 987,719.44 × 259,234.58
  4. Step 4: Simplify right side
    658,315.60x = 256,051,031,666.69
  5. Step 5: Solve for x
    x = 256,051,031,666.69/658,315.60
  6. Step 6: Final answer
    x = 388,948.75

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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.