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Finding the Fourth Proportional to 674,388.26, 930,644.93 and 368,458.07

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Solution

The fourth proportional to 674,388.26, 930,644.93 and 368,458.07 is: 508,466.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,388.26 : 930,644.93 = 368,458.07 : x
  2. Step 2: Convert to fraction form
    674,388.26/930,644.93 = 368,458.07/x
  3. Step 3: Cross multiply
    674,388.26x = 930,644.93 × 368,458.07
  4. Step 4: Simplify right side
    674,388.26x = 342,903,630,109.86
  5. Step 5: Solve for x
    x = 342,903,630,109.86/674,388.26
  6. Step 6: Final answer
    x = 508,466.20

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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.