Home / 501,719.23-692,083.02-320,226.63

Finding the Fourth Proportional to 501,719.23, 692,083.02 and 320,226.63

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Solution

The fourth proportional to 501,719.23, 692,083.02 and 320,226.63 is: 441,727.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,719.23 : 692,083.02 = 320,226.63 : x
  2. Step 2: Convert to fraction form
    501,719.23/692,083.02 = 320,226.63/x
  3. Step 3: Cross multiply
    501,719.23x = 692,083.02 × 320,226.63
  4. Step 4: Simplify right side
    501,719.23x = 221,623,413,174.82
  5. Step 5: Solve for x
    x = 221,623,413,174.82/501,719.23
  6. Step 6: Final answer
    x = 441,727.96

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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.