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Finding the Fourth Proportional to 505,871.70, 758,807.55 and 482,543.70

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Solution

The fourth proportional to 505,871.70, 758,807.55 and 482,543.70 is: 723,815.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,871.70 : 758,807.55 = 482,543.70 : x
  2. Step 2: Convert to fraction form
    505,871.70/758,807.55 = 482,543.70/x
  3. Step 3: Cross multiply
    505,871.70x = 758,807.55 × 482,543.70
  4. Step 4: Simplify right side
    505,871.70x = 366,157,802,764.94
  5. Step 5: Solve for x
    x = 366,157,802,764.94/505,871.70
  6. Step 6: Final answer
    x = 723,815.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.