Home / 812,116.65-1,218,174.98-362,663.85

Finding the Fourth Proportional to 812,116.65, 1,218,174.98 and 362,663.85

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Solution

The fourth proportional to 812,116.65, 1,218,174.98 and 362,663.85 is: 543,995.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,116.65 : 1,218,174.98 = 362,663.85 : x
  2. Step 2: Convert to fraction form
    812,116.65/1,218,174.98 = 362,663.85/x
  3. Step 3: Cross multiply
    812,116.65x = 1,218,174.98 × 362,663.85
  4. Step 4: Simplify right side
    812,116.65x = 441,788,026,407.15
  5. Step 5: Solve for x
    x = 441,788,026,407.15/812,116.65
  6. Step 6: Final answer
    x = 543,995.78

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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.