Home / 3,178,484.39-4,386,256.81-1,728,216.36

Finding the Fourth Proportional to 3,178,484.39, 4,386,256.81 and 1,728,216.36

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Solution

The fourth proportional to 3,178,484.39, 4,386,256.81 and 1,728,216.36 is: 2,384,910.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,178,484.39 : 4,386,256.81 = 1,728,216.36 : x
  2. Step 2: Convert to fraction form
    3,178,484.39/4,386,256.81 = 1,728,216.36/x
  3. Step 3: Cross multiply
    3,178,484.39x = 4,386,256.81 × 1,728,216.36
  4. Step 4: Simplify right side
    3,178,484.39x = 7,580,400,773,882.87
  5. Step 5: Solve for x
    x = 7,580,400,773,882.87/3,178,484.39
  6. Step 6: Final answer
    x = 2,384,910.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.