Home / 557,533.08-835,832.70-388,557.72

Finding the Fourth Proportional to 557,533.08, 835,832.70 and 388,557.72

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Solution

The fourth proportional to 557,533.08, 835,832.70 and 388,557.72 is: 582,511.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,533.08 : 835,832.70 = 388,557.72 : x
  2. Step 2: Convert to fraction form
    557,533.08/835,832.70 = 388,557.72/x
  3. Step 3: Cross multiply
    557,533.08x = 835,832.70 × 388,557.72
  4. Step 4: Simplify right side
    557,533.08x = 324,769,248,213.44
  5. Step 5: Solve for x
    x = 324,769,248,213.44/557,533.08
  6. Step 6: Final answer
    x = 582,511.17

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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.