Home / 646,279.07-968,815.70-219,522.92

Finding the Fourth Proportional to 646,279.07, 968,815.70 and 219,522.92

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Solution

The fourth proportional to 646,279.07, 968,815.70 and 219,522.92 is: 329,079.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,279.07 : 968,815.70 = 219,522.92 : x
  2. Step 2: Convert to fraction form
    646,279.07/968,815.70 = 219,522.92/x
  3. Step 3: Cross multiply
    646,279.07x = 968,815.70 × 219,522.92
  4. Step 4: Simplify right side
    646,279.07x = 212,677,252,730.27
  5. Step 5: Solve for x
    x = 212,677,252,730.27/646,279.07
  6. Step 6: Final answer
    x = 329,079.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.