Home / 813,124.16-1,219,688.91-205,912.14

Finding the Fourth Proportional to 813,124.16, 1,219,688.91 and 205,912.14

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Solution

The fourth proportional to 813,124.16, 1,219,688.91 and 205,912.14 is: 308,868.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,124.16 : 1,219,688.91 = 205,912.14 : x
  2. Step 2: Convert to fraction form
    813,124.16/1,219,688.91 = 205,912.14/x
  3. Step 3: Cross multiply
    813,124.16x = 1,219,688.91 × 205,912.14
  4. Step 4: Simplify right side
    813,124.16x = 251,148,753,592.37
  5. Step 5: Solve for x
    x = 251,148,753,592.37/813,124.16
  6. Step 6: Final answer
    x = 308,868.89

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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.