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Finding the Fourth Proportional to 557,337.44, 769,173.10 and 315,663.00

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Solution

The fourth proportional to 557,337.44, 769,173.10 and 315,663.00 is: 435,641.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,337.44 : 769,173.10 = 315,663.00 : x
  2. Step 2: Convert to fraction form
    557,337.44/769,173.10 = 315,663.00/x
  3. Step 3: Cross multiply
    557,337.44x = 769,173.10 × 315,663.00
  4. Step 4: Simplify right side
    557,337.44x = 242,799,491,544.28
  5. Step 5: Solve for x
    x = 242,799,491,544.28/557,337.44
  6. Step 6: Final answer
    x = 435,641.81

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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.