Home / 812,282.46-1,219,211.01-391,853.58

Finding the Fourth Proportional to 812,282.46, 1,219,211.01 and 391,853.58

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Solution

The fourth proportional to 812,282.46, 1,219,211.01 and 391,853.58 is: 588,160.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,282.46 : 1,219,211.01 = 391,853.58 : x
  2. Step 2: Convert to fraction form
    812,282.46/1,219,211.01 = 391,853.58/x
  3. Step 3: Cross multiply
    812,282.46x = 1,219,211.01 × 391,853.58
  4. Step 4: Simplify right side
    812,282.46x = 477,752,199,043.92
  5. Step 5: Solve for x
    x = 477,752,199,043.92/812,282.46
  6. Step 6: Final answer
    x = 588,160.18

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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.