Home / 813,852.67-1,123,130.19-451,291.81

Finding the Fourth Proportional to 813,852.67, 1,123,130.19 and 451,291.81

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Solution

The fourth proportional to 813,852.67, 1,123,130.19 and 451,291.81 is: 622,790.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,852.67 : 1,123,130.19 = 451,291.81 : x
  2. Step 2: Convert to fraction form
    813,852.67/1,123,130.19 = 451,291.81/x
  3. Step 3: Cross multiply
    813,852.67x = 1,123,130.19 × 451,291.81
  4. Step 4: Simplify right side
    813,852.67x = 506,859,456,310.74
  5. Step 5: Solve for x
    x = 506,859,456,310.74/813,852.67
  6. Step 6: Final answer
    x = 622,790.19

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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.