Home / 776,787.64-1,165,244.70-215,822.20

Finding the Fourth Proportional to 776,787.64, 1,165,244.70 and 215,822.20

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Solution

The fourth proportional to 776,787.64, 1,165,244.70 and 215,822.20 is: 323,750.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,787.64 : 1,165,244.70 = 215,822.20 : x
  2. Step 2: Convert to fraction form
    776,787.64/1,165,244.70 = 215,822.20/x
  3. Step 3: Cross multiply
    776,787.64x = 1,165,244.70 × 215,822.20
  4. Step 4: Simplify right side
    776,787.64x = 251,485,674,692.34
  5. Step 5: Solve for x
    x = 251,485,674,692.34/776,787.64
  6. Step 6: Final answer
    x = 323,750.87

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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.