Home / 917,185.05-1,376,313.39-384,661.49

Finding the Fourth Proportional to 917,185.05, 1,376,313.39 and 384,661.49

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Solution

The fourth proportional to 917,185.05, 1,376,313.39 and 384,661.49 is: 577,216.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,185.05 : 1,376,313.39 = 384,661.49 : x
  2. Step 2: Convert to fraction form
    917,185.05/1,376,313.39 = 384,661.49/x
  3. Step 3: Cross multiply
    917,185.05x = 1,376,313.39 × 384,661.49
  4. Step 4: Simplify right side
    917,185.05x = 529,414,752,422.78
  5. Step 5: Solve for x
    x = 529,414,752,422.78/917,185.05
  6. Step 6: Final answer
    x = 577,216.94

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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.