Home / 689,465.42-1,034,198.40-216,187.68

Finding the Fourth Proportional to 689,465.42, 1,034,198.40 and 216,187.68

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Solution

The fourth proportional to 689,465.42, 1,034,198.40 and 216,187.68 is: 324,281.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,465.42 : 1,034,198.40 = 216,187.68 : x
  2. Step 2: Convert to fraction form
    689,465.42/1,034,198.40 = 216,187.68/x
  3. Step 3: Cross multiply
    689,465.42x = 1,034,198.40 × 216,187.68
  4. Step 4: Simplify right side
    689,465.42x = 223,580,956,228.60
  5. Step 5: Solve for x
    x = 223,580,956,228.60/689,465.42
  6. Step 6: Final answer
    x = 324,281.61

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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.