Home / 605,339.40-834,968.34-378,591.24

Finding the Fourth Proportional to 605,339.40, 834,968.34 and 378,591.24

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Solution

The fourth proportional to 605,339.40, 834,968.34 and 378,591.24 is: 522,205.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,339.40 : 834,968.34 = 378,591.24 : x
  2. Step 2: Convert to fraction form
    605,339.40/834,968.34 = 378,591.24/x
  3. Step 3: Cross multiply
    605,339.40x = 834,968.34 × 378,591.24
  4. Step 4: Simplify right side
    605,339.40x = 316,111,699,201.34
  5. Step 5: Solve for x
    x = 316,111,699,201.34/605,339.40
  6. Step 6: Final answer
    x = 522,205.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.