Home / 328,788.27-454,041.21-310,876.47

Finding the Fourth Proportional to 328,788.27, 454,041.21 and 310,876.47

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Solution

The fourth proportional to 328,788.27, 454,041.21 and 310,876.47 is: 429,305.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,788.27 : 454,041.21 = 310,876.47 : x
  2. Step 2: Convert to fraction form
    328,788.27/454,041.21 = 310,876.47/x
  3. Step 3: Cross multiply
    328,788.27x = 454,041.21 × 310,876.47
  4. Step 4: Simplify right side
    328,788.27x = 141,150,728,599.33
  5. Step 5: Solve for x
    x = 141,150,728,599.33/328,788.27
  6. Step 6: Final answer
    x = 429,305.85

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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.