Home / 810,130.20-1,215,224.46-304,644.84

Finding the Fourth Proportional to 810,130.20, 1,215,224.46 and 304,644.84

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Solution

The fourth proportional to 810,130.20, 1,215,224.46 and 304,644.84 is: 456,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,130.20 : 1,215,224.46 = 304,644.84 : x
  2. Step 2: Convert to fraction form
    810,130.20/1,215,224.46 = 304,644.84/x
  3. Step 3: Cross multiply
    810,130.20x = 1,215,224.46 × 304,644.84
  4. Step 4: Simplify right side
    810,130.20x = 370,211,861,180.79
  5. Step 5: Solve for x
    x = 370,211,861,180.79/810,130.20
  6. Step 6: Final answer
    x = 456,978.23

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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.