Home / 685,807.91-1,029,376.16-331,071.04

Finding the Fourth Proportional to 685,807.91, 1,029,376.16 and 331,071.04

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Solution

The fourth proportional to 685,807.91, 1,029,376.16 and 331,071.04 is: 496,927.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,807.91 : 1,029,376.16 = 331,071.04 : x
  2. Step 2: Convert to fraction form
    685,807.91/1,029,376.16 = 331,071.04/x
  3. Step 3: Cross multiply
    685,807.91x = 1,029,376.16 × 331,071.04
  4. Step 4: Simplify right side
    685,807.91x = 340,796,635,842.41
  5. Step 5: Solve for x
    x = 340,796,635,842.41/685,807.91
  6. Step 6: Final answer
    x = 496,927.25

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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.