Home / 689,696.32-1,034,545.06-329,782.49

Finding the Fourth Proportional to 689,696.32, 1,034,545.06 and 329,782.49

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Solution

The fourth proportional to 689,696.32, 1,034,545.06 and 329,782.49 is: 494,674.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,696.32 : 1,034,545.06 = 329,782.49 : x
  2. Step 2: Convert to fraction form
    689,696.32/1,034,545.06 = 329,782.49/x
  3. Step 3: Cross multiply
    689,696.32x = 1,034,545.06 × 329,782.49
  4. Step 4: Simplify right side
    689,696.32x = 341,174,845,904.00
  5. Step 5: Solve for x
    x = 341,174,845,904.00/689,696.32
  6. Step 6: Final answer
    x = 494,674.01

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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.