Home / 813,003.06-1,219,064.76-645,600.36

Finding the Fourth Proportional to 813,003.06, 1,219,064.76 and 645,600.36

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Solution

The fourth proportional to 813,003.06, 1,219,064.76 and 645,600.36 is: 968,051.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,003.06 : 1,219,064.76 = 645,600.36 : x
  2. Step 2: Convert to fraction form
    813,003.06/1,219,064.76 = 645,600.36/x
  3. Step 3: Cross multiply
    813,003.06x = 1,219,064.76 × 645,600.36
  4. Step 4: Simplify right side
    813,003.06x = 787,028,647,919.31
  5. Step 5: Solve for x
    x = 787,028,647,919.31/813,003.06
  6. Step 6: Final answer
    x = 968,051.27

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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.