Home / 670,223.76-1,005,122.32-220,860.80

Finding the Fourth Proportional to 670,223.76, 1,005,122.32 and 220,860.80

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Solution

The fourth proportional to 670,223.76, 1,005,122.32 and 220,860.80 is: 331,220.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,223.76 : 1,005,122.32 = 220,860.80 : x
  2. Step 2: Convert to fraction form
    670,223.76/1,005,122.32 = 220,860.80/x
  3. Step 3: Cross multiply
    670,223.76x = 1,005,122.32 × 220,860.80
  4. Step 4: Simplify right side
    670,223.76x = 221,992,119,693.06
  5. Step 5: Solve for x
    x = 221,992,119,693.06/670,223.76
  6. Step 6: Final answer
    x = 331,220.90

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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.