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Finding the Fourth Proportional to 605,348.48, 835,368.72 and 379,118.72

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Solution

The fourth proportional to 605,348.48, 835,368.72 and 379,118.72 is: 523,176.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,348.48 : 835,368.72 = 379,118.72 : x
  2. Step 2: Convert to fraction form
    605,348.48/835,368.72 = 379,118.72/x
  3. Step 3: Cross multiply
    605,348.48x = 835,368.72 × 379,118.72
  4. Step 4: Simplify right side
    605,348.48x = 316,703,919,854.44
  5. Step 5: Solve for x
    x = 316,703,919,854.44/605,348.48
  6. Step 6: Final answer
    x = 523,176.20

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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.