Home / 1,077,661.69-1,616,492.53-438,313.28

Finding the Fourth Proportional to 1,077,661.69, 1,616,492.53 and 438,313.28

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Solution

The fourth proportional to 1,077,661.69, 1,616,492.53 and 438,313.28 is: 657,469.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,661.69 : 1,616,492.53 = 438,313.28 : x
  2. Step 2: Convert to fraction form
    1,077,661.69/1,616,492.53 = 438,313.28/x
  3. Step 3: Cross multiply
    1,077,661.69x = 1,616,492.53 × 438,313.28
  4. Step 4: Simplify right side
    1,077,661.69x = 708,530,135,385.23
  5. Step 5: Solve for x
    x = 708,530,135,385.23/1,077,661.69
  6. Step 6: Final answer
    x = 657,469.91

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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.