Home / 711,131.58-1,066,698.39-290,407.44

Finding the Fourth Proportional to 711,131.58, 1,066,698.39 and 290,407.44

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Solution

The fourth proportional to 711,131.58, 1,066,698.39 and 290,407.44 is: 435,611.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,131.58 : 1,066,698.39 = 290,407.44 : x
  2. Step 2: Convert to fraction form
    711,131.58/1,066,698.39 = 290,407.44/x
  3. Step 3: Cross multiply
    711,131.58x = 1,066,698.39 × 290,407.44
  4. Step 4: Simplify right side
    711,131.58x = 309,777,148,692.02
  5. Step 5: Solve for x
    x = 309,777,148,692.02/711,131.58
  6. Step 6: Final answer
    x = 435,611.58

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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.