Home / 687,304.71-1,030,542.75-308,156.94

Finding the Fourth Proportional to 687,304.71, 1,030,542.75 and 308,156.94

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Solution

The fourth proportional to 687,304.71, 1,030,542.75 and 308,156.94 is: 462,049.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,304.71 : 1,030,542.75 = 308,156.94 : x
  2. Step 2: Convert to fraction form
    687,304.71/1,030,542.75 = 308,156.94/x
  3. Step 3: Cross multiply
    687,304.71x = 1,030,542.75 × 308,156.94
  4. Step 4: Simplify right side
    687,304.71x = 317,568,900,379.19
  5. Step 5: Solve for x
    x = 317,568,900,379.19/687,304.71
  6. Step 6: Final answer
    x = 462,049.65

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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.