Home / 689,458.39-1,034,187.57-216,181.87

Finding the Fourth Proportional to 689,458.39, 1,034,187.57 and 216,181.87

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Solution

The fourth proportional to 689,458.39, 1,034,187.57 and 216,181.87 is: 324,272.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,458.39 : 1,034,187.57 = 216,181.87 : x
  2. Step 2: Convert to fraction form
    689,458.39/1,034,187.57 = 216,181.87/x
  3. Step 3: Cross multiply
    689,458.39x = 1,034,187.57 × 216,181.87
  4. Step 4: Simplify right side
    689,458.39x = 223,572,602,813.36
  5. Step 5: Solve for x
    x = 223,572,602,813.36/689,458.39
  6. Step 6: Final answer
    x = 324,272.80

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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.