Home / 690,692.83-1,036,149.96-291,392.42

Finding the Fourth Proportional to 690,692.83, 1,036,149.96 and 291,392.42

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Solution

The fourth proportional to 690,692.83, 1,036,149.96 and 291,392.42 is: 437,135.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,692.83 : 1,036,149.96 = 291,392.42 : x
  2. Step 2: Convert to fraction form
    690,692.83/1,036,149.96 = 291,392.42/x
  3. Step 3: Cross multiply
    690,692.83x = 1,036,149.96 × 291,392.42
  4. Step 4: Simplify right side
    690,692.83x = 301,926,237,689.59
  5. Step 5: Solve for x
    x = 301,926,237,689.59/690,692.83
  6. Step 6: Final answer
    x = 437,135.33

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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.