Home / 642,977.48-964,502.69-193,760.39

Finding the Fourth Proportional to 642,977.48, 964,502.69 and 193,760.39

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Solution

The fourth proportional to 642,977.48, 964,502.69 and 193,760.39 is: 290,651.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,977.48 : 964,502.69 = 193,760.39 : x
  2. Step 2: Convert to fraction form
    642,977.48/964,502.69 = 193,760.39/x
  3. Step 3: Cross multiply
    642,977.48x = 964,502.69 × 193,760.39
  4. Step 4: Simplify right side
    642,977.48x = 186,882,418,812.90
  5. Step 5: Solve for x
    x = 186,882,418,812.90/642,977.48
  6. Step 6: Final answer
    x = 290,651.58

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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.