Home / 403,537.83-552,849.23-388,403.79

Finding the Fourth Proportional to 403,537.83, 552,849.23 and 388,403.79

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Solution

The fourth proportional to 403,537.83, 552,849.23 and 388,403.79 is: 532,115.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,537.83 : 552,849.23 = 388,403.79 : x
  2. Step 2: Convert to fraction form
    403,537.83/552,849.23 = 388,403.79/x
  3. Step 3: Cross multiply
    403,537.83x = 552,849.23 × 388,403.79
  4. Step 4: Simplify right side
    403,537.83x = 214,728,734,848.46
  5. Step 5: Solve for x
    x = 214,728,734,848.46/403,537.83
  6. Step 6: Final answer
    x = 532,115.50

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.