Home / 1,384,614-2,076,921-387,342

Finding the Fourth Proportional to 1,384,614, 2,076,921 and 387,342

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Solution

The fourth proportional to 1,384,614, 2,076,921 and 387,342 is: 581,013

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,614 : 2,076,921 = 387,342 : x
  2. Step 2: Convert to fraction form
    1,384,614/2,076,921 = 387,342/x
  3. Step 3: Cross multiply
    1,384,614x = 2,076,921 × 387,342
  4. Step 4: Simplify right side
    1,384,614x = 804,478,733,982
  5. Step 5: Solve for x
    x = 804,478,733,982/1,384,614
  6. Step 6: Final answer
    x = 581,013

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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.