Home / 718,858.70-1,078,103.46-213,300.10

Finding the Fourth Proportional to 718,858.70, 1,078,103.46 and 213,300.10

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Solution

The fourth proportional to 718,858.70, 1,078,103.46 and 213,300.10 is: 319,895.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,858.70 : 1,078,103.46 = 213,300.10 : x
  2. Step 2: Convert to fraction form
    718,858.70/1,078,103.46 = 213,300.10/x
  3. Step 3: Cross multiply
    718,858.70x = 1,078,103.46 × 213,300.10
  4. Step 4: Simplify right side
    718,858.70x = 229,959,575,828.35
  5. Step 5: Solve for x
    x = 229,959,575,828.35/718,858.70
  6. Step 6: Final answer
    x = 319,895.38

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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.