Home / 670,908.20-1,006,070.70-221,455.40

Finding the Fourth Proportional to 670,908.20, 1,006,070.70 and 221,455.40

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Solution

The fourth proportional to 670,908.20, 1,006,070.70 and 221,455.40 is: 332,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,908.20 : 1,006,070.70 = 221,455.40 : x
  2. Step 2: Convert to fraction form
    670,908.20/1,006,070.70 = 221,455.40/x
  3. Step 3: Cross multiply
    670,908.20x = 1,006,070.70 × 221,455.40
  4. Step 4: Simplify right side
    670,908.20x = 222,799,789,296.78
  5. Step 5: Solve for x
    x = 222,799,789,296.78/670,908.20
  6. Step 6: Final answer
    x = 332,086.85

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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.