Home / 813,106.19-1,122,056.28-468,956.54

Finding the Fourth Proportional to 813,106.19, 1,122,056.28 and 468,956.54

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Solution

The fourth proportional to 813,106.19, 1,122,056.28 and 468,956.54 is: 647,142.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,106.19 : 1,122,056.28 = 468,956.54 : x
  2. Step 2: Convert to fraction form
    813,106.19/1,122,056.28 = 468,956.54/x
  3. Step 3: Cross multiply
    813,106.19x = 1,122,056.28 × 468,956.54
  4. Step 4: Simplify right side
    813,106.19x = 526,195,633,559.21
  5. Step 5: Solve for x
    x = 526,195,633,559.21/813,106.19
  6. Step 6: Final answer
    x = 647,142.57

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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.