Home / 690,981.24-1,036,421.94-217,802.04

Finding the Fourth Proportional to 690,981.24, 1,036,421.94 and 217,802.04

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Solution

The fourth proportional to 690,981.24, 1,036,421.94 and 217,802.04 is: 326,687.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,981.24 : 1,036,421.94 = 217,802.04 : x
  2. Step 2: Convert to fraction form
    690,981.24/1,036,421.94 = 217,802.04/x
  3. Step 3: Cross multiply
    690,981.24x = 1,036,421.94 × 217,802.04
  4. Step 4: Simplify right side
    690,981.24x = 225,734,812,832.76
  5. Step 5: Solve for x
    x = 225,734,812,832.76/690,981.24
  6. Step 6: Final answer
    x = 326,687.32

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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.