Home / 670,332.69-1,005,285.36-220,969.80

Finding the Fourth Proportional to 670,332.69, 1,005,285.36 and 220,969.80

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Solution

The fourth proportional to 670,332.69, 1,005,285.36 and 220,969.80 is: 331,384.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,332.69 : 1,005,285.36 = 220,969.80 : x
  2. Step 2: Convert to fraction form
    670,332.69/1,005,285.36 = 220,969.80/x
  3. Step 3: Cross multiply
    670,332.69x = 1,005,285.36 × 220,969.80
  4. Step 4: Simplify right side
    670,332.69x = 222,137,704,942.13
  5. Step 5: Solve for x
    x = 222,137,704,942.13/670,332.69
  6. Step 6: Final answer
    x = 331,384.26

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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.