Home / 1,238,364.79-1,857,719.36-439,456.39

Finding the Fourth Proportional to 1,238,364.79, 1,857,719.36 and 439,456.39

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Solution

The fourth proportional to 1,238,364.79, 1,857,719.36 and 439,456.39 is: 659,245.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,364.79 : 1,857,719.36 = 439,456.39 : x
  2. Step 2: Convert to fraction form
    1,238,364.79/1,857,719.36 = 439,456.39/x
  3. Step 3: Cross multiply
    1,238,364.79x = 1,857,719.36 × 439,456.39
  4. Step 4: Simplify right side
    1,238,364.79x = 816,386,643,578.71
  5. Step 5: Solve for x
    x = 816,386,643,578.71/1,238,364.79
  6. Step 6: Final answer
    x = 659,245.68

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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.