Home / 813,500.22-1,219,389.98-300,835.93

Finding the Fourth Proportional to 813,500.22, 1,219,389.98 and 300,835.93

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Solution

The fourth proportional to 813,500.22, 1,219,389.98 and 300,835.93 is: 450,935.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,500.22 : 1,219,389.98 = 300,835.93 : x
  2. Step 2: Convert to fraction form
    813,500.22/1,219,389.98 = 300,835.93/x
  3. Step 3: Cross multiply
    813,500.22x = 1,219,389.98 × 300,835.93
  4. Step 4: Simplify right side
    813,500.22x = 366,836,318,665.98
  5. Step 5: Solve for x
    x = 366,836,318,665.98/813,500.22
  6. Step 6: Final answer
    x = 450,935.73

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1.5x scale

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.