Home / 813,862.51-1,219,814.54-301,118.85

Finding the Fourth Proportional to 813,862.51, 1,219,814.54 and 301,118.85

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Solution

The fourth proportional to 813,862.51, 1,219,814.54 and 301,118.85 is: 451,315.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,862.51 : 1,219,814.54 = 301,118.85 : x
  2. Step 2: Convert to fraction form
    813,862.51/1,219,814.54 = 301,118.85/x
  3. Step 3: Cross multiply
    813,862.51x = 1,219,814.54 × 301,118.85
  4. Step 4: Simplify right side
    813,862.51x = 367,309,143,893.41
  5. Step 5: Solve for x
    x = 367,309,143,893.41/813,862.51
  6. Step 6: Final answer
    x = 451,315.96

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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.