Home / 686,925.11-1,030,605.96-308,171.54

Finding the Fourth Proportional to 686,925.11, 1,030,605.96 and 308,171.54

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Solution

The fourth proportional to 686,925.11, 1,030,605.96 and 308,171.54 is: 462,355.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,925.11 : 1,030,605.96 = 308,171.54 : x
  2. Step 2: Convert to fraction form
    686,925.11/1,030,605.96 = 308,171.54/x
  3. Step 3: Cross multiply
    686,925.11x = 1,030,605.96 × 308,171.54
  4. Step 4: Simplify right side
    686,925.11x = 317,603,429,558.54
  5. Step 5: Solve for x
    x = 317,603,429,558.54/686,925.11
  6. Step 6: Final answer
    x = 462,355.25

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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.