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Finding the Fourth Proportional to 605,347.48, 835,367.34 and 379,117.72

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Solution

The fourth proportional to 605,347.48, 835,367.34 and 379,117.72 is: 523,174.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,347.48 : 835,367.34 = 379,117.72 : x
  2. Step 2: Convert to fraction form
    605,347.48/835,367.34 = 379,117.72/x
  3. Step 3: Cross multiply
    605,347.48x = 835,367.34 × 379,117.72
  4. Step 4: Simplify right side
    605,347.48x = 316,702,561,303.27
  5. Step 5: Solve for x
    x = 316,702,561,303.27/605,347.48
  6. Step 6: Final answer
    x = 523,174.82

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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.