Home / 670,176.40-1,005,313.20-403,362.40

Finding the Fourth Proportional to 670,176.40, 1,005,313.20 and 403,362.40

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Solution

The fourth proportional to 670,176.40, 1,005,313.20 and 403,362.40 is: 605,072.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,176.40 : 1,005,313.20 = 403,362.40 : x
  2. Step 2: Convert to fraction form
    670,176.40/1,005,313.20 = 403,362.40/x
  3. Step 3: Cross multiply
    670,176.40x = 1,005,313.20 × 403,362.40
  4. Step 4: Simplify right side
    670,176.40x = 405,505,545,103.68
  5. Step 5: Solve for x
    x = 405,505,545,103.68/670,176.40
  6. Step 6: Final answer
    x = 605,072.85

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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.