Home / 670,659.89-1,006,089.62-221,428.22

Finding the Fourth Proportional to 670,659.89, 1,006,089.62 and 221,428.22

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Solution

The fourth proportional to 670,659.89, 1,006,089.62 and 221,428.22 is: 332,175.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,659.89 : 1,006,089.62 = 221,428.22 : x
  2. Step 2: Convert to fraction form
    670,659.89/1,006,089.62 = 221,428.22/x
  3. Step 3: Cross multiply
    670,659.89x = 1,006,089.62 × 221,428.22
  4. Step 4: Simplify right side
    670,659.89x = 222,776,627,579.49
  5. Step 5: Solve for x
    x = 222,776,627,579.49/670,659.89
  6. Step 6: Final answer
    x = 332,175.27

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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.