Home / 659,815.68-989,238.88-210,277.76

Finding the Fourth Proportional to 659,815.68, 989,238.88 and 210,277.76

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Solution

The fourth proportional to 659,815.68, 989,238.88 and 210,277.76 is: 315,262.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,815.68 : 989,238.88 = 210,277.76 : x
  2. Step 2: Convert to fraction form
    659,815.68/989,238.88 = 210,277.76/x
  3. Step 3: Cross multiply
    659,815.68x = 989,238.88 × 210,277.76
  4. Step 4: Simplify right side
    659,815.68x = 208,014,935,791.31
  5. Step 5: Solve for x
    x = 208,014,935,791.31/659,815.68
  6. Step 6: Final answer
    x = 315,262.19

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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.