Home / 1,238,445.18-1,857,669.39-339,899.22

Finding the Fourth Proportional to 1,238,445.18, 1,857,669.39 and 339,899.22

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Solution

The fourth proportional to 1,238,445.18, 1,857,669.39 and 339,899.22 is: 509,849.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,445.18 : 1,857,669.39 = 339,899.22 : x
  2. Step 2: Convert to fraction form
    1,238,445.18/1,857,669.39 = 339,899.22/x
  3. Step 3: Cross multiply
    1,238,445.18x = 1,857,669.39 × 339,899.22
  4. Step 4: Simplify right side
    1,238,445.18x = 631,420,376,678.88
  5. Step 5: Solve for x
    x = 631,420,376,678.88/1,238,445.18
  6. Step 6: Final answer
    x = 509,849.27

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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.