Home / 812,117.73-1,120,708.90-449,533.83

Finding the Fourth Proportional to 812,117.73, 1,120,708.90 and 449,533.83

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Solution

The fourth proportional to 812,117.73, 1,120,708.90 and 449,533.83 is: 620,349.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,117.73 : 1,120,708.90 = 449,533.83 : x
  2. Step 2: Convert to fraction form
    812,117.73/1,120,708.90 = 449,533.83/x
  3. Step 3: Cross multiply
    812,117.73x = 1,120,708.90 × 449,533.83
  4. Step 4: Simplify right side
    812,117.73x = 503,796,564,132.09
  5. Step 5: Solve for x
    x = 503,796,564,132.09/812,117.73
  6. Step 6: Final answer
    x = 620,349.18

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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.