Home / 670,334.69-1,005,288.36-220,971.80

Finding the Fourth Proportional to 670,334.69, 1,005,288.36 and 220,971.80

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Solution

The fourth proportional to 670,334.69, 1,005,288.36 and 220,971.80 is: 331,387.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,334.69 : 1,005,288.36 = 220,971.80 : x
  2. Step 2: Convert to fraction form
    670,334.69/1,005,288.36 = 220,971.80/x
  3. Step 3: Cross multiply
    670,334.69x = 1,005,288.36 × 220,971.80
  4. Step 4: Simplify right side
    670,334.69x = 222,140,378,428.25
  5. Step 5: Solve for x
    x = 222,140,378,428.25/670,334.69
  6. Step 6: Final answer
    x = 331,387.26

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1.5x scale

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.