Home / 319,826.72-480,311.88-306,969.16

Finding the Fourth Proportional to 319,826.72, 480,311.88 and 306,969.16

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Solution

The fourth proportional to 319,826.72, 480,311.88 and 306,969.16 is: 461,002.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,826.72 : 480,311.88 = 306,969.16 : x
  2. Step 2: Convert to fraction form
    319,826.72/480,311.88 = 306,969.16/x
  3. Step 3: Cross multiply
    319,826.72x = 480,311.88 × 306,969.16
  4. Step 4: Simplify right side
    319,826.72x = 147,440,934,341.62
  5. Step 5: Solve for x
    x = 147,440,934,341.62/319,826.72
  6. Step 6: Final answer
    x = 461,002.55

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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.