Home / 813,993.84-1,220,301.36-308,275.92

Finding the Fourth Proportional to 813,993.84, 1,220,301.36 and 308,275.92

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Solution

The fourth proportional to 813,993.84, 1,220,301.36 and 308,275.92 is: 462,152.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,993.84 : 1,220,301.36 = 308,275.92 : x
  2. Step 2: Convert to fraction form
    813,993.84/1,220,301.36 = 308,275.92/x
  3. Step 3: Cross multiply
    813,993.84x = 1,220,301.36 × 308,275.92
  4. Step 4: Simplify right side
    813,993.84x = 376,189,524,431.25
  5. Step 5: Solve for x
    x = 376,189,524,431.25/813,993.84
  6. Step 6: Final answer
    x = 462,152.79

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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.