Home / 670,373.46-1,005,346.98-221,010.66

Finding the Fourth Proportional to 670,373.46, 1,005,346.98 and 221,010.66

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Solution

The fourth proportional to 670,373.46, 1,005,346.98 and 221,010.66 is: 331,445.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,373.46 : 1,005,346.98 = 221,010.66 : x
  2. Step 2: Convert to fraction form
    670,373.46/1,005,346.98 = 221,010.66/x
  3. Step 3: Cross multiply
    670,373.46x = 1,005,346.98 × 221,010.66
  4. Step 4: Simplify right side
    670,373.46x = 222,192,399,578.81
  5. Step 5: Solve for x
    x = 222,192,399,578.81/670,373.46
  6. Step 6: Final answer
    x = 331,445.70

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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.