Home / 689,176.49-1,033,764.80-215,898.75

Finding the Fourth Proportional to 689,176.49, 1,033,764.80 and 215,898.75

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Solution

The fourth proportional to 689,176.49, 1,033,764.80 and 215,898.75 is: 323,848.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,176.49 : 1,033,764.80 = 215,898.75 : x
  2. Step 2: Convert to fraction form
    689,176.49/1,033,764.80 = 215,898.75/x
  3. Step 3: Cross multiply
    689,176.49x = 1,033,764.80 × 215,898.75
  4. Step 4: Simplify right side
    689,176.49x = 223,188,527,034.51
  5. Step 5: Solve for x
    x = 223,188,527,034.51/689,176.49
  6. Step 6: Final answer
    x = 323,848.15

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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.