Home / 453,905.29-678,961.58-318,959.83

Finding the Fourth Proportional to 453,905.29, 678,961.58 and 318,959.83

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Solution

The fourth proportional to 453,905.29, 678,961.58 and 318,959.83 is: 477,107.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,905.29 : 678,961.58 = 318,959.83 : x
  2. Step 2: Convert to fraction form
    453,905.29/678,961.58 = 318,959.83/x
  3. Step 3: Cross multiply
    453,905.29x = 678,961.58 × 318,959.83
  4. Step 4: Simplify right side
    453,905.29x = 216,561,466,738.52
  5. Step 5: Solve for x
    x = 216,561,466,738.52/453,905.29
  6. Step 6: Final answer
    x = 477,107.17

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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.