Home / 1,238,363.79-1,857,717.86-439,455.39

Finding the Fourth Proportional to 1,238,363.79, 1,857,717.86 and 439,455.39

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Solution

The fourth proportional to 1,238,363.79, 1,857,717.86 and 439,455.39 is: 659,244.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,363.79 : 1,857,717.86 = 439,455.39 : x
  2. Step 2: Convert to fraction form
    1,238,363.79/1,857,717.86 = 439,455.39/x
  3. Step 3: Cross multiply
    1,238,363.79x = 1,857,717.86 × 439,455.39
  4. Step 4: Simplify right side
    1,238,363.79x = 816,384,124,478.99
  5. Step 5: Solve for x
    x = 816,384,124,478.99/1,238,363.79
  6. Step 6: Final answer
    x = 659,244.18

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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.