Home / 481,427.15-721,870.85-329,795.69

Finding the Fourth Proportional to 481,427.15, 721,870.85 and 329,795.69

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Solution

The fourth proportional to 481,427.15, 721,870.85 and 329,795.69 is: 494,508.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,427.15 : 721,870.85 = 329,795.69 : x
  2. Step 2: Convert to fraction form
    481,427.15/721,870.85 = 329,795.69/x
  3. Step 3: Cross multiply
    481,427.15x = 721,870.85 × 329,795.69
  4. Step 4: Simplify right side
    481,427.15x = 238,069,892,281.77
  5. Step 5: Solve for x
    x = 238,069,892,281.77/481,427.15
  6. Step 6: Final answer
    x = 494,508.66

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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.