Home / 813,105.70-1,122,055.59-468,956.04

Finding the Fourth Proportional to 813,105.70, 1,122,055.59 and 468,956.04

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Solution

The fourth proportional to 813,105.70, 1,122,055.59 and 468,956.04 is: 647,141.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,105.70 : 1,122,055.59 = 468,956.04 : x
  2. Step 2: Convert to fraction form
    813,105.70/1,122,055.59 = 468,956.04/x
  3. Step 3: Cross multiply
    813,105.70x = 1,122,055.59 × 468,956.04
  4. Step 4: Simplify right side
    813,105.70x = 526,194,746,146.26
  5. Step 5: Solve for x
    x = 526,194,746,146.26/813,105.70
  6. Step 6: Final answer
    x = 647,141.87

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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.