Home / 670,030.70-1,005,069.65-214,635.78

Finding the Fourth Proportional to 670,030.70, 1,005,069.65 and 214,635.78

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Solution

The fourth proportional to 670,030.70, 1,005,069.65 and 214,635.78 is: 321,961.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,030.70 : 1,005,069.65 = 214,635.78 : x
  2. Step 2: Convert to fraction form
    670,030.70/1,005,069.65 = 214,635.78/x
  3. Step 3: Cross multiply
    670,030.70x = 1,005,069.65 × 214,635.78
  4. Step 4: Simplify right side
    670,030.70x = 215,723,907,208.90
  5. Step 5: Solve for x
    x = 215,723,907,208.90/670,030.70
  6. Step 6: Final answer
    x = 321,961.23

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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.