Home / 810,390.49-1,215,633.29-304,955.77

Finding the Fourth Proportional to 810,390.49, 1,215,633.29 and 304,955.77

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Solution

The fourth proportional to 810,390.49, 1,215,633.29 and 304,955.77 is: 457,451.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,390.49 : 1,215,633.29 = 304,955.77 : x
  2. Step 2: Convert to fraction form
    810,390.49/1,215,633.29 = 304,955.77/x
  3. Step 3: Cross multiply
    810,390.49x = 1,215,633.29 × 304,955.77
  4. Step 4: Simplify right side
    810,390.49x = 370,714,385,989.58
  5. Step 5: Solve for x
    x = 370,714,385,989.58/810,390.49
  6. Step 6: Final answer
    x = 457,451.55

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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.