Home / 1,421,533.80-2,131,523.10-579,133.80

Finding the Fourth Proportional to 1,421,533.80, 2,131,523.10 and 579,133.80

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Solution

The fourth proportional to 1,421,533.80, 2,131,523.10 and 579,133.80 is: 868,383.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,533.80 : 2,131,523.10 = 579,133.80 : x
  2. Step 2: Convert to fraction form
    1,421,533.80/2,131,523.10 = 579,133.80/x
  3. Step 3: Cross multiply
    1,421,533.80x = 2,131,523.10 × 579,133.80
  4. Step 4: Simplify right side
    1,421,533.80x = 1,234,437,072,690.78
  5. Step 5: Solve for x
    x = 1,234,437,072,690.78/1,421,533.80
  6. Step 6: Final answer
    x = 868,383.91

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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.