Home / 690,875.66-1,036,500.07-211,090.38

Finding the Fourth Proportional to 690,875.66, 1,036,500.07 and 211,090.38

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Solution

The fourth proportional to 690,875.66, 1,036,500.07 and 211,090.38 is: 316,692.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,875.66 : 1,036,500.07 = 211,090.38 : x
  2. Step 2: Convert to fraction form
    690,875.66/1,036,500.07 = 211,090.38/x
  3. Step 3: Cross multiply
    690,875.66x = 1,036,500.07 × 211,090.38
  4. Step 4: Simplify right side
    690,875.66x = 218,795,192,590.88
  5. Step 5: Solve for x
    x = 218,795,192,590.88/690,875.66
  6. Step 6: Final answer
    x = 316,692.58

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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.