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Finding the Fourth Proportional to 658,668.32, 909,015.64 and 372,247.84

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Solution

The fourth proportional to 658,668.32, 909,015.64 and 372,247.84 is: 513,732.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,668.32 : 909,015.64 = 372,247.84 : x
  2. Step 2: Convert to fraction form
    658,668.32/909,015.64 = 372,247.84/x
  3. Step 3: Cross multiply
    658,668.32x = 909,015.64 × 372,247.84
  4. Step 4: Simplify right side
    658,668.32x = 338,379,108,516.22
  5. Step 5: Solve for x
    x = 338,379,108,516.22/658,668.32
  6. Step 6: Final answer
    x = 513,732.17

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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.