Home / 812,073.80-1,218,110.70-758,929.70

Finding the Fourth Proportional to 812,073.80, 1,218,110.70 and 758,929.70

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Solution

The fourth proportional to 812,073.80, 1,218,110.70 and 758,929.70 is: 1,138,394.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,073.80 : 1,218,110.70 = 758,929.70 : x
  2. Step 2: Convert to fraction form
    812,073.80/1,218,110.70 = 758,929.70/x
  3. Step 3: Cross multiply
    812,073.80x = 1,218,110.70 × 758,929.70
  4. Step 4: Simplify right side
    812,073.80x = 924,460,388,117.79
  5. Step 5: Solve for x
    x = 924,460,388,117.79/812,073.80
  6. Step 6: Final answer
    x = 1,138,394.55

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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.