Home / 856,312.06-1,284,648.44-323,821.30

Finding the Fourth Proportional to 856,312.06, 1,284,648.44 and 323,821.30

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Solution

The fourth proportional to 856,312.06, 1,284,648.44 and 323,821.30 is: 485,800.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,312.06 : 1,284,648.44 = 323,821.30 : x
  2. Step 2: Convert to fraction form
    856,312.06/1,284,648.44 = 323,821.30/x
  3. Step 3: Cross multiply
    856,312.06x = 1,284,648.44 × 323,821.30
  4. Step 4: Simplify right side
    856,312.06x = 415,996,521,460.53
  5. Step 5: Solve for x
    x = 415,996,521,460.53/856,312.06
  6. Step 6: Final answer
    x = 485,800.15

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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.