Home / 1,384,391.79-1,910,457-772,538.04

Finding the Fourth Proportional to 1,384,391.79, 1,910,457 and 772,538.04

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Solution

The fourth proportional to 1,384,391.79, 1,910,457 and 772,538.04 is: 1,066,100.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,391.79 : 1,910,457 = 772,538.04 : x
  2. Step 2: Convert to fraction form
    1,384,391.79/1,910,457 = 772,538.04/x
  3. Step 3: Cross multiply
    1,384,391.79x = 1,910,457 × 772,538.04
  4. Step 4: Simplify right side
    1,384,391.79x = 1,475,900,706,284.28
  5. Step 5: Solve for x
    x = 1,475,900,706,284.28/1,384,391.79
  6. Step 6: Final answer
    x = 1,066,100.45

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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.