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Finding the Fourth Proportional to 518,003.05, 776,800.36 and 251,684.77

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Solution

The fourth proportional to 518,003.05, 776,800.36 and 251,684.77 is: 377,427.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,003.05 : 776,800.36 = 251,684.77 : x
  2. Step 2: Convert to fraction form
    518,003.05/776,800.36 = 251,684.77/x
  3. Step 3: Cross multiply
    518,003.05x = 776,800.36 × 251,684.77
  4. Step 4: Simplify right side
    518,003.05x = 195,508,818,315.12
  5. Step 5: Solve for x
    x = 195,508,818,315.12/518,003.05
  6. Step 6: Final answer
    x = 377,427.93

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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.