Home / 812,606.58-1,121,951.25-506,802.42

Finding the Fourth Proportional to 812,606.58, 1,121,951.25 and 506,802.42

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Solution

The fourth proportional to 812,606.58, 1,121,951.25 and 506,802.42 is: 699,732.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,606.58 : 1,121,951.25 = 506,802.42 : x
  2. Step 2: Convert to fraction form
    812,606.58/1,121,951.25 = 506,802.42/x
  3. Step 3: Cross multiply
    812,606.58x = 1,121,951.25 × 506,802.42
  4. Step 4: Simplify right side
    812,606.58x = 568,607,608,622.03
  5. Step 5: Solve for x
    x = 568,607,608,622.03/812,606.58
  6. Step 6: Final answer
    x = 699,732.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.