Home / 460,428.24-690,700.68-128,004.24

Finding the Fourth Proportional to 460,428.24, 690,700.68 and 128,004.24

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Solution

The fourth proportional to 460,428.24, 690,700.68 and 128,004.24 is: 192,022.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,428.24 : 690,700.68 = 128,004.24 : x
  2. Step 2: Convert to fraction form
    460,428.24/690,700.68 = 128,004.24/x
  3. Step 3: Cross multiply
    460,428.24x = 690,700.68 × 128,004.24
  4. Step 4: Simplify right side
    460,428.24x = 88,412,615,610.88
  5. Step 5: Solve for x
    x = 88,412,615,610.88/460,428.24
  6. Step 6: Final answer
    x = 192,022.57

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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.