Home / 1,238,522.20-1,857,345.90-439,829.80

Finding the Fourth Proportional to 1,238,522.20, 1,857,345.90 and 439,829.80

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Solution

The fourth proportional to 1,238,522.20, 1,857,345.90 and 439,829.80 is: 659,589.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,522.20 : 1,857,345.90 = 439,829.80 : x
  2. Step 2: Convert to fraction form
    1,238,522.20/1,857,345.90 = 439,829.80/x
  3. Step 3: Cross multiply
    1,238,522.20x = 1,857,345.90 × 439,829.80
  4. Step 4: Simplify right side
    1,238,522.20x = 816,916,075,727.82
  5. Step 5: Solve for x
    x = 816,916,075,727.82/1,238,522.20
  6. Step 6: Final answer
    x = 659,589.37

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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.