Home / 557,338.18-769,026.81-331,039.30

Finding the Fourth Proportional to 557,338.18, 769,026.81 and 331,039.30

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Solution

The fourth proportional to 557,338.18, 769,026.81 and 331,039.30 is: 456,774.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,338.18 : 769,026.81 = 331,039.30 : x
  2. Step 2: Convert to fraction form
    557,338.18/769,026.81 = 331,039.30/x
  3. Step 3: Cross multiply
    557,338.18x = 769,026.81 × 331,039.30
  4. Step 4: Simplify right side
    557,338.18x = 254,578,096,863.63
  5. Step 5: Solve for x
    x = 254,578,096,863.63/557,338.18
  6. Step 6: Final answer
    x = 456,774.91

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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.