Home / 689,696.83-1,034,545.81-329,783

Finding the Fourth Proportional to 689,696.83, 1,034,545.81 and 329,783

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Solution

The fourth proportional to 689,696.83, 1,034,545.81 and 329,783 is: 494,674.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,696.83 : 1,034,545.81 = 329,783 : x
  2. Step 2: Convert to fraction form
    689,696.83/1,034,545.81 = 329,783/x
  3. Step 3: Cross multiply
    689,696.83x = 1,034,545.81 × 329,783
  4. Step 4: Simplify right side
    689,696.83x = 341,175,620,859.23
  5. Step 5: Solve for x
    x = 341,175,620,859.23/689,696.83
  6. Step 6: Final answer
    x = 494,674.77

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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.