Home / 1,098,859.80-1,648,581.30-388,813.80

Finding the Fourth Proportional to 1,098,859.80, 1,648,581.30 and 388,813.80

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Solution

The fourth proportional to 1,098,859.80, 1,648,581.30 and 388,813.80 is: 583,323.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,859.80 : 1,648,581.30 = 388,813.80 : x
  2. Step 2: Convert to fraction form
    1,098,859.80/1,648,581.30 = 388,813.80/x
  3. Step 3: Cross multiply
    1,098,859.80x = 1,648,581.30 × 388,813.80
  4. Step 4: Simplify right side
    1,098,859.80x = 640,991,159,861.94
  5. Step 5: Solve for x
    x = 640,991,159,861.94/1,098,859.80
  6. Step 6: Final answer
    x = 583,323.88

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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.