Home / 818,826.83-1,228,386.06-279,053.18

Finding the Fourth Proportional to 818,826.83, 1,228,386.06 and 279,053.18

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Solution

The fourth proportional to 818,826.83, 1,228,386.06 and 279,053.18 is: 418,629.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,826.83 : 1,228,386.06 = 279,053.18 : x
  2. Step 2: Convert to fraction form
    818,826.83/1,228,386.06 = 279,053.18/x
  3. Step 3: Cross multiply
    818,826.83x = 1,228,386.06 × 279,053.18
  4. Step 4: Simplify right side
    818,826.83x = 342,785,030,168.74
  5. Step 5: Solve for x
    x = 342,785,030,168.74/818,826.83
  6. Step 6: Final answer
    x = 418,629.46

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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.