Home / 690,875.16-1,036,499.31-211,089.88

Finding the Fourth Proportional to 690,875.16, 1,036,499.31 and 211,089.88

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Solution

The fourth proportional to 690,875.16, 1,036,499.31 and 211,089.88 is: 316,691.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,875.16 : 1,036,499.31 = 211,089.88 : x
  2. Step 2: Convert to fraction form
    690,875.16/1,036,499.31 = 211,089.88/x
  3. Step 3: Cross multiply
    690,875.16x = 1,036,499.31 × 211,089.88
  4. Step 4: Simplify right side
    690,875.16x = 218,794,516,857.30
  5. Step 5: Solve for x
    x = 218,794,516,857.30/690,875.16
  6. Step 6: Final answer
    x = 316,691.83

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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.