Home / 690,120.11-1,035,391.44-353,399.17

Finding the Fourth Proportional to 690,120.11, 1,035,391.44 and 353,399.17

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Solution

The fourth proportional to 690,120.11, 1,035,391.44 and 353,399.17 is: 530,206.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,120.11 : 1,035,391.44 = 353,399.17 : x
  2. Step 2: Convert to fraction form
    690,120.11/1,035,391.44 = 353,399.17/x
  3. Step 3: Cross multiply
    690,120.11x = 1,035,391.44 × 353,399.17
  4. Step 4: Simplify right side
    690,120.11x = 365,906,475,521.11
  5. Step 5: Solve for x
    x = 365,906,475,521.11/690,120.11
  6. Step 6: Final answer
    x = 530,206.95

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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.