Home / 810,388.49-1,215,630.29-304,953.77

Finding the Fourth Proportional to 810,388.49, 1,215,630.29 and 304,953.77

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Solution

The fourth proportional to 810,388.49, 1,215,630.29 and 304,953.77 is: 457,448.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,388.49 : 1,215,630.29 = 304,953.77 : x
  2. Step 2: Convert to fraction form
    810,388.49/1,215,630.29 = 304,953.77/x
  3. Step 3: Cross multiply
    810,388.49x = 1,215,630.29 × 304,953.77
  4. Step 4: Simplify right side
    810,388.49x = 370,711,039,861.69
  5. Step 5: Solve for x
    x = 370,711,039,861.69/810,388.49
  6. Step 6: Final answer
    x = 457,448.55

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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.