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Finding the Fourth Proportional to 478,735.56, 715,173.93 and 344,469.96

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Solution

The fourth proportional to 478,735.56, 715,173.93 and 344,469.96 is: 514,597.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,735.56 : 715,173.93 = 344,469.96 : x
  2. Step 2: Convert to fraction form
    478,735.56/715,173.93 = 344,469.96/x
  3. Step 3: Cross multiply
    478,735.56x = 715,173.93 × 344,469.96
  4. Step 4: Simplify right side
    478,735.56x = 246,355,935,060.14
  5. Step 5: Solve for x
    x = 246,355,935,060.14/478,735.56
  6. Step 6: Final answer
    x = 514,597.11

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.