Home / 1,421,485.80-2,131,451.10-579,085.80

Finding the Fourth Proportional to 1,421,485.80, 2,131,451.10 and 579,085.80

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Solution

The fourth proportional to 1,421,485.80, 2,131,451.10 and 579,085.80 is: 868,311.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,485.80 : 2,131,451.10 = 579,085.80 : x
  2. Step 2: Convert to fraction form
    1,421,485.80/2,131,451.10 = 579,085.80/x
  3. Step 3: Cross multiply
    1,421,485.80x = 2,131,451.10 × 579,085.80
  4. Step 4: Simplify right side
    1,421,485.80x = 1,234,293,065,404.38
  5. Step 5: Solve for x
    x = 1,234,293,065,404.38/1,421,485.80
  6. Step 6: Final answer
    x = 868,311.92

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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.