Home / 812,203.01-1,120,803.80-449,601.24

Finding the Fourth Proportional to 812,203.01, 1,120,803.80 and 449,601.24

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Solution

The fourth proportional to 812,203.01, 1,120,803.80 and 449,601.24 is: 620,429.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,203.01 : 1,120,803.80 = 449,601.24 : x
  2. Step 2: Convert to fraction form
    812,203.01/1,120,803.80 = 449,601.24/x
  3. Step 3: Cross multiply
    812,203.01x = 1,120,803.80 × 449,601.24
  4. Step 4: Simplify right side
    812,203.01x = 503,914,778,276.71
  5. Step 5: Solve for x
    x = 503,914,778,276.71/812,203.01
  6. Step 6: Final answer
    x = 620,429.59

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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.