Home / 851,017.31-1,276,530.08-251,989.77

Finding the Fourth Proportional to 851,017.31, 1,276,530.08 and 251,989.77

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Solution

The fourth proportional to 851,017.31, 1,276,530.08 and 251,989.77 is: 377,985.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,017.31 : 1,276,530.08 = 251,989.77 : x
  2. Step 2: Convert to fraction form
    851,017.31/1,276,530.08 = 251,989.77/x
  3. Step 3: Cross multiply
    851,017.31x = 1,276,530.08 × 251,989.77
  4. Step 4: Simplify right side
    851,017.31x = 321,672,521,257.28
  5. Step 5: Solve for x
    x = 321,672,521,257.28/851,017.31
  6. Step 6: Final answer
    x = 377,985.87

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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.