Home / 718,317.34-1,077,633.69-212,917.30

Finding the Fourth Proportional to 718,317.34, 1,077,633.69 and 212,917.30

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Solution

The fourth proportional to 718,317.34, 1,077,633.69 and 212,917.30 is: 319,422.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,317.34 : 1,077,633.69 = 212,917.30 : x
  2. Step 2: Convert to fraction form
    718,317.34/1,077,633.69 = 212,917.30/x
  3. Step 3: Cross multiply
    718,317.34x = 1,077,633.69 × 212,917.30
  4. Step 4: Simplify right side
    718,317.34x = 229,446,855,663.84
  5. Step 5: Solve for x
    x = 229,446,855,663.84/718,317.34
  6. Step 6: Final answer
    x = 319,422.69

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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.