Home / 670,333.69-1,005,286.86-220,970.80

Finding the Fourth Proportional to 670,333.69, 1,005,286.86 and 220,970.80

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Solution

The fourth proportional to 670,333.69, 1,005,286.86 and 220,970.80 is: 331,385.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,333.69 : 1,005,286.86 = 220,970.80 : x
  2. Step 2: Convert to fraction form
    670,333.69/1,005,286.86 = 220,970.80/x
  3. Step 3: Cross multiply
    670,333.69x = 1,005,286.86 × 220,970.80
  4. Step 4: Simplify right side
    670,333.69x = 222,139,041,683.69
  5. Step 5: Solve for x
    x = 222,139,041,683.69/670,333.69
  6. Step 6: Final answer
    x = 331,385.76

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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.