Home / 813,326.20-1,219,989.30-603,374.20

Finding the Fourth Proportional to 813,326.20, 1,219,989.30 and 603,374.20

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Solution

The fourth proportional to 813,326.20, 1,219,989.30 and 603,374.20 is: 905,061.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,326.20 : 1,219,989.30 = 603,374.20 : x
  2. Step 2: Convert to fraction form
    813,326.20/1,219,989.30 = 603,374.20/x
  3. Step 3: Cross multiply
    813,326.20x = 1,219,989.30 × 603,374.20
  4. Step 4: Simplify right side
    813,326.20x = 736,110,067,896.06
  5. Step 5: Solve for x
    x = 736,110,067,896.06/813,326.20
  6. Step 6: Final answer
    x = 905,061.30

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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.