Home / 855,867.40-1,283,315.10-323,405.80

Finding the Fourth Proportional to 855,867.40, 1,283,315.10 and 323,405.80

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Solution

The fourth proportional to 855,867.40, 1,283,315.10 and 323,405.80 is: 484,925.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,867.40 : 1,283,315.10 = 323,405.80 : x
  2. Step 2: Convert to fraction form
    855,867.40/1,283,315.10 = 323,405.80/x
  3. Step 3: Cross multiply
    855,867.40x = 1,283,315.10 × 323,405.80
  4. Step 4: Simplify right side
    855,867.40x = 415,031,546,567.58
  5. Step 5: Solve for x
    x = 415,031,546,567.58/855,867.40
  6. Step 6: Final answer
    x = 484,925.06

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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.