Home / 812,042.70-1,120,583.58-449,444.88

Finding the Fourth Proportional to 812,042.70, 1,120,583.58 and 449,444.88

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Solution

The fourth proportional to 812,042.70, 1,120,583.58 and 449,444.88 is: 620,214.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,042.70 : 1,120,583.58 = 449,444.88 : x
  2. Step 2: Convert to fraction form
    812,042.70/1,120,583.58 = 449,444.88/x
  3. Step 3: Cross multiply
    812,042.70x = 1,120,583.58 × 449,444.88
  4. Step 4: Simplify right side
    812,042.70x = 503,640,552,643.07
  5. Step 5: Solve for x
    x = 503,640,552,643.07/812,042.70
  6. Step 6: Final answer
    x = 620,214.37

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Double scale
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1.5x scale

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.