Home / 667,051.80-1,000,577.70-400,675.20

Finding the Fourth Proportional to 667,051.80, 1,000,577.70 and 400,675.20

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Solution

The fourth proportional to 667,051.80, 1,000,577.70 and 400,675.20 is: 601,012.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,051.80 : 1,000,577.70 = 400,675.20 : x
  2. Step 2: Convert to fraction form
    667,051.80/1,000,577.70 = 400,675.20/x
  3. Step 3: Cross multiply
    667,051.80x = 1,000,577.70 × 400,675.20
  4. Step 4: Simplify right side
    667,051.80x = 400,906,670,063.04
  5. Step 5: Solve for x
    x = 400,906,670,063.04/667,051.80
  6. Step 6: Final answer
    x = 601,012.80

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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.